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What will happen to the potential energy of a body (when the height is kept the Same) if its mass is doubled?
If the mass of a body is doubled while keeping its height the same, the potential energy of the body will double as well. Potential energy is directly proportional to the mass of the object, so increasing the mass will result in an increase in potential energy.
Can the potential difference across a battery be greater than its EMF?
If the emf of a battery is E Volt, the potential difference across a battery is given byV = E -I r where I is the current in the circuit and r is the inetrnal resistance.Hence E and V will be equal only when I = 0.The maximum potential difference across the battery will be equal to E only if I = 0.In gnereral potential difference can be equal or less than the emf.E.m.f can never exceed the potential difference.=====================================A battery charger is a device used to put energy into a secondary cell or (rechargeable) batteryby forcing an electric current through it.Hence to charge a battery another source of emf is needed.The combined emf is now will be (E - E1) where E is the emf of the battey in quesiton and E 1 is the emf of the external source used to charge the battery.Note that E-E1 will be negative in sign.======================================...A battery is charged only when its emf is less than its maximum emf.Suppose that the maximum emf of a cell is 1.5V. The battery should be charged only when its emf is less than 1.5 V say 0.5 V.To charge the cell we use a different source of emf E1 say 3V.The positive of the second source is connected to the negative of the cell so that theCombined emf is now 0.5 - 3 = -2.5V.The negative sign indicates that the emf is opposite to the emf of the cell which is 0.5V.Since the cell is getting charged, the difference in emf is gradually reduced to zero when the cell is fully charged.In modern charging units there are provisions so that the cell is never allowed to be over charged, even if the charging unit is in on for about 12 hours.When the cell is fully charged, (that is when the emf of the cell is now 1.5V), the potential difference between either the second source or cell will be zero.Taking into consideration the sign of the emf and the direction of current through the cell and the sign of the potential difference, the potential difference will be always less than the emf of the cell (which gradually increases while charging).Note that the potential difference is negative if the emf of the cell is taken as positive.Also note that the cell is charged only when its emf is less than its maximum e.m.f
What is the difference between potential and potential energy, and how can understanding this distinction help us unlock the full potential of a system?
Potential refers to the possibility or capability of something to happen or be developed. Potential energy, on the other hand, is the energy that an object possesses due to its position or condition. Understanding the distinction between potential and potential energy can help us unlock the full potential of a system by allowing us to identify and utilize the stored energy within the system. By recognizing the potential energy present in a system, we can harness it to perform work or create change, ultimately maximizing the system's capabilities and efficiency.
Why do I get an electric shock when I touch something?
When you touch something and get an electric shock, it is because of the transfer of electric charge between you and the object. This can happen when there is a difference in the electrical potential between you and the object, causing a sudden flow of electricity through your body.
What happen to potential energy of a body when its height is doubled?
When the height of a body is doubled, its potential energy also doubles. This is because potential energy is directly proportional to the height of an object in a gravitational field.
What happen when voltage across the pn junction increases?
If the potential across the junction is high enough, then it could cause it to conduct. This is with all diodes and is the forward voltage. If it is not high enough, it will just sit there and not conduct.
How is electrical current different from water?
A: No difference both are electrons. static however is a potential yet to happen while electric is actually flowing
What will happen if you double the voltage across a diode?
basically a diode flows an exponential curve Vs current if you try to double the voltage drop by increasing the voltage it should self destruct
What will happen to the potential energy of a body (when the height is kept the Same) if its mass is doubled?
If the mass of a body is doubled while keeping its height the same, the potential energy of the body will double as well. Potential energy is directly proportional to the mass of the object, so increasing the mass will result in an increase in potential energy.
Where does electricity happens?
Electricity does not 'happen' it is induced by a potential difference of electrons. But materials in which electrons may drift, and hence an electrical current can flow, must have delocalised electrons.
Can the potential difference across a battery be greater than its EMF?
If the emf of a battery is E Volt, the potential difference across a battery is given byV = E -I r where I is the current in the circuit and r is the inetrnal resistance.Hence E and V will be equal only when I = 0.The maximum potential difference across the battery will be equal to E only if I = 0.In gnereral potential difference can be equal or less than the emf.E.m.f can never exceed the potential difference.=====================================A battery charger is a device used to put energy into a secondary cell or (rechargeable) batteryby forcing an electric current through it.Hence to charge a battery another source of emf is needed.The combined emf is now will be (E - E1) where E is the emf of the battey in quesiton and E 1 is the emf of the external source used to charge the battery.Note that E-E1 will be negative in sign.======================================...A battery is charged only when its emf is less than its maximum emf.Suppose that the maximum emf of a cell is 1.5V. The battery should be charged only when its emf is less than 1.5 V say 0.5 V.To charge the cell we use a different source of emf E1 say 3V.The positive of the second source is connected to the negative of the cell so that theCombined emf is now 0.5 - 3 = -2.5V.The negative sign indicates that the emf is opposite to the emf of the cell which is 0.5V.Since the cell is getting charged, the difference in emf is gradually reduced to zero when the cell is fully charged.In modern charging units there are provisions so that the cell is never allowed to be over charged, even if the charging unit is in on for about 12 hours.When the cell is fully charged, (that is when the emf of the cell is now 1.5V), the potential difference between either the second source or cell will be zero.Taking into consideration the sign of the emf and the direction of current through the cell and the sign of the potential difference, the potential difference will be always less than the emf of the cell (which gradually increases while charging).Note that the potential difference is negative if the emf of the cell is taken as positive.Also note that the cell is charged only when its emf is less than its maximum e.m.f
When did Rails Across America happen?
Rails Across America happened in 2001.
When did Storm Across Europe happen?
Storm Across Europe happened in 1989.
When ions move across a plasma membrane what will happen?
When ions move across a plasma membrane, it can create changes in membrane potential and can trigger physiological responses within the cell. The movement of ions is essential for functions such as nerve signaling, muscle contraction, and maintaining osmotic balance. Transport of ions across the membrane is tightly regulated to maintain cellular homeostasis.
What will happen when a dielectric slab is inserted in the parallel plate capacitor?
(a) Charge Will increase (b) Potential difference will stay the same (c) Capacitance will increase (d) Stored energy will decrease
What is the formula for determining potential difference?
The formula for determining potential difference is V = W/q, where V represents potential difference (in volts), W is the work done moving a charge (in joules), and q is the amount of charge moved (in coulombs).
What will happen to the perimeter of a square if you double the dimensions?
It will also double.
