SSC JE Electrical Engineering 2017 Set 3 Paper

Question : 102 of 200

Marks: +1, -0

Which of the following statements about electric voltage is true ?

Voltage is the directed movement of electrons
Voltage causes current to flow
Voltage is the irregular movement of electrons
Voltage is not always needed to cause the flow of current

Solution:

Voltage between two points is equal to the work done per unit charge against a static electric field to move a rest charge between two point and charge per unit time create current.

E=w/Q

and

Q/t=I

So voltage causes current to flow in a circuit.

Go to Question:

Prev Question

Next Question