JEE Main2009PhysicsElectrostaticsActual
Two points P and Q are maintained at the potentials of 10 ~V and -4 ~V respectively. The work done in moving 100 electrons from P to Q is
Options
- A-19 10⁻¹⁷ ~J
- B9.60 10⁻¹⁷ ~J
- C-2.24 10⁻¹⁶ ~J
- D2.24 10⁻¹⁶ ~J
Correct answer
D. 2.24 10⁻¹⁶ ~J
Step-by-step solution
aligned & W=Q d V=Q (V_q-V_P )=-100 (1.6 10⁻¹⁹ ) (-4-10) & =+100 1.6 10⁻¹⁹ 14=+2.2410⁻¹⁶ ~J aligned