a potential difference of 10v causes a current of 5a to flow through a lamp. if the bulb is switched on for 20 seconds, how much energy is transferred ?
Transferred energy = "I*V*t"
I= 5A
V=5 v
t=20 sec
Transferred energy = 5 * 5 * 20 = 25 * 20 = 500 J
Answer : 500 J
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