Suppose a lamp is connected to a battery of 10 V and current flowing through the lamp is 2 A. The heat energy produced by the lamp in 10 s is:

Correct option is C

The correct answer is (C) 200 J.

1. Calculate Power:

• $$Power(p)={Voltage(V)}\times{Current(I)}$$​
• $$P={10 V}\times{2A}$$​
• $$P=20 Watts$$​

2. Calculate Energy:

• $$Energy(E)={Power(P)}\times{times(T)}$$​
• $$E={20 Watts}\times{10 second}$$​
• $$E=200Joules$$​

Therefore, the heat energy produced by the lamp in 10 seconds is 200 Joules.