Question

A bulb has a resistance of 5 Ω. If 2 A of current at 200 V flows through the bulb, how

much heat is produced by the bulb in 10 minutes?​

Answer 1

Answer:

Explanation:

H = VIT

V= 200V

I=2 A

T= 10×60 SECONDS

H=VIT

  =200×2×10×60

  =240000

Answer 2

Answer:

The heat produced by the bulb after the flowing of 2A current for 10 minutes will be 12kJ

Explanation:

here in this question, we will directly use the formula which shows the relation between resistance of the bulb, current flowing through the bulb, and the time during which the current flows

the heat produced by the bulb(H)= square of the current flowing through the bulb(I^2) x resistance(R) x time taken(t)

simply,

H=$I^{2} Rt$

the values given in the question are,

R=5

I=2A

t=10minutes=10 x 60=600s

now let's put them  into the formula

H=$2^{2}$x5x600=12000J=12kJ