Question

if 100 j of work is done in moving 2c of charge from a part a point a 5v to another of v voltmeter .find the value of v​

Answer 1

Therefore;

Voltage=Work doneChargeVoltage=Work doneCharge

Voltage or electric potential difference is denoted by ‘V’. Therefore;

V=WQV=WQ -----------(1)

Where, W = work done and Q = Charge

SI unit of electric potential difference (Voltage):

SI unit of electric potential difference is volt and denoted by ‘V’. This is named in honour of Italian Physicist Alessandro Volta.

V=JouleCoulomb=JCV=JouleCoulomb=JC

Or, V=J C−1V=J C-1

Since joule is the unit of work and coulomb is the unit of charge; 1 volt of electric potential difference is equal to the 1 joule of work to be done to move a charge of 1 coulomb from one point to another in an electric circuit. Therefore,

1V=1 Joule1 Coulomb=1J1C

Answer 2

Answer:

The value of V = 30 volt.

Explanation:

Given,

work done $(W)$ = 100 Jule

charge(q) = 4 Coulomb

Charge is moving from $V_1 = 5 V$ to $V_2 =V$ volt .

We know that,

               $W = q \Delta V$

         → $W = q (V_2 - V_1)$

         → $100 = 4 \times(V -5)$

         → $V-5 = 25$

         → $V= 30$

∴ The value of V = 30 volt.