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Difference in potential between two points. Like the voltage of an energizer AA battery is 1.5 volts BETWEEN its terminals. If you place two AA batteries in a flashlight, the voltage of the series combination of AA batteries from one tip to the other is now 3 volts.
What else can I help you with?
True or false. a high transient voltage exists close to a lightning strike or when large loads are switched off.?
True
What is true about the sum of the voltages across the components in a circuit compared to the voltage of the cell?
voltage is devided only in series circuit and is the same at the parallel circuit
How are currrent voltage and resistance related by Ohms Law?
They're not! The relationship you describe is derived from the definition of the ohm, not from Ohm's Law. This tells us that resistance is equal to the voltage divided by the current. Ohm's Law merely tells us that the ratio of voltage to current is constant for variations in voltage -which, unfortunately, is not actually true. In other words, Ohm's Law is not true!
Which one of the following statements is true of a split phase motor when it is starting the speed is high the torque is high the current is low the voltage is low?
The first statement is true, the motor needs a power source to operate.
Are there tri-voltage motors?
On some motor nameplates you may see 120/208-240. These are not true tri-voltage motors. They are dual voltage motors with a leniency on the 240 volt range to be derated to run on 208 volts. At this voltage the current drops and you don't get the full horse power rating of the motor. To answer your question I have never seen one that would do true three voltages like 120/240/480.
True or False The voltage rating of a fuse can be greater than the circuit voltage?
True. The voltage rating of a fuse must be greater than the circuit voltage.
Is it true that for the same resistance the greater the voltage the greater the current?
true
What is the true power when using a V supply voltage and a kW heating element with a voltage rating of V?
True power is expressed in watts, so the true power of your heater is its kilowatt rating at its rated voltage. Variations in voltage will result in variations in its power. Assuming its resistance remains roughly constant for variations in temperature, then True Power = V2/R.
Is Ohm's law states that voltage in a circuit is equal to resistance times current true or false?
True. Ohm's law states the voltage is resistance times current.
Is it true or false that a tacho-generator generates an ac voltage?
True! Depending on the designed specifications of the tacho, the voltage generated is usually in the range of around 0 to 36 volts.
Is it true that Less watts will be spend when low voltage?
Yes. If you reduce the voltage to the same device, then it uses less power.
When electric current is following in a curcuit if the voltage applied to the curcuit is increased the resistance will decrease true or false?
true
What is the voltage in a circuit?
zero That's not always true. If you have a 12 volt battery not connected to anything and you measure the terminal voltage, it will be 12 volts.
True or false. a high transient voltage exists close to a lightning strike or when large loads are switched off.?
True
What is true about the sum of the voltages across the components in a circuit compared to the voltage of the cell?
voltage is devided only in series circuit and is the same at the parallel circuit
Does A pulse of positive voltage represents 0?
No, a pulse of positive voltage typically represents a binary 1 in digital electronics. A binary 0 is usually represented by a low voltage or ground signal.
Is it true that electrical current flows from a state of rest to a high pressure state?
No, it is not true. An electrical current (which is a flow of electrons) can only flow from a higher pressure state (higher voltage) to a lower pressure state (lower voltage).
