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Yes, heat energy is produced by the electrons;however small it may be,actually if we consider a resistance then it is an hindered to the flow of electrons,as a result of which the electrons collide with the particles of wire resulting in loss of energy in the form of heat.the equation of heat generated is:
H=(I^2 *R*t)
where-
H=heat produced in joules
R=resistance of the material in ohm
t=time of current flow in seconds
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∙ 11y ago
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What happens to the current at a junction in a parallel circuit?
In a parallel circuit the current divides when it comes to a junction. Part of the current flows through one branch and the other part flows through the other.When the two branches have the same resistance, the same current flows through each branch.When the two branches have different resistances, a bigger current flows through the branch with the smaller resistance - it's just easier this way!Hope i helped ;)
What are the three electrical guantities?
The three electrical quantities are current voltage and resistance. Current is measured in amperes (A) and is the rate at which electricity flows through a conductor. Voltage is measured in volts (V) and is the electrical force pushing the current through the conductor. Resistance is measured in ohms () and is the opposition to the flow of current. Current - measured in amperes (A) Voltage - measured in volts (V) Resistance - measured in ohms ()
How much current flows through a toaster with a resistance of 20 ohms when it is connected to a 110 volt outlet?
Ohm's Law Volts = Current x Resistance Amps = V / R 110 / 20 = 5.5 Amps
The total current that flows through a circuit is the same as the current that flows through each individual resistor connected in series?
True
What do you mean by 'cold resistance' and 'hot resistance'?
Metals that make up typical resistors (and many other electrical components for that matter) tend to heat up as current flows through them. "COLD" resistance is the resistance before it is operating and "HOT" resistance is the resistance after some operating time has elapsed.
What may cause an electrical conductor to heat up?
An electrical conductor may heat up due to excessive current passing through it, which increases its resistance and generates heat. Poor connections, overloading, or inadequate conductor size can also cause heating. This can lead to a potential fire hazard if not addressed.
What is meant by resistance of a current?
The resistance of a current is a measure of how difficult it is to push the electrons along.AnswerThere is no such thing as the 'resistance of a current'. Resistance is a characteristic of the material through which a current flows, not of the current itself.
What is the effect when current flows through resistance?
voltagei=v/r
Does the resistance of heater coil remains same when current flows through it?
Typically resistance rises with temperature.
Does resistance of heater coil remains same when current flows through it?
Typically resistance rises with temperature.
What happens to the current at a junction in a parallel circuit?
In a parallel circuit the current divides when it comes to a junction. Part of the current flows through one branch and the other part flows through the other.When the two branches have the same resistance, the same current flows through each branch.When the two branches have different resistances, a bigger current flows through the branch with the smaller resistance - it's just easier this way!Hope i helped ;)
What is the amount of current that flows through an electrical pathway with a resistance of 48 and voltage of 240v?
5amps of current will flow it
A resistance of 10 ohms is placed across a 9 volt battery what current flows through the battery?
No current flows through the battery. There is a current through the external circuit. I = E/R = 9/10 = 0.9 amperes.
How much current flows through a resistance of 300 ohms if the power source is 15 volts?
Ohm's Law Voltage = Current x Resistance Answer is 15/300
Normally a high current flows through a short circuit even if there is no change to the voltage. Why is this?
A high current flows through a short circuit even if there is no voltage change because the resistance across the short circuit is zero.
Why does the cord of an electric heater not glow while the heating element does?
The heating element of an electric heater is a "resistor", the cord which conducts the electricity is not. The resistance of the element of an electric heater is very high. As current flows through the heating element, it becomes red hot and glows. On the other hand, the resistance of the cord is low. It does not become red hot when current flows through it.
How many watts are consumed by 1.25 amperes?
The number of watts produced by a current of 1.25 amperes can only be known if you also know either the applied voltage which caused that current to flow (W=I x E); or if you know the resistance through which the current flows. (W= I2 R).
