Question

if H=I²RT/4.2find H.when I=1.6,R=6.7andT=42​

Answer 1

Answer:

the answer is 72.0384 joules of heat energy

Answer 2

Answer:

171.52 J

Step-by-step explanation:

Given that,

I = 1.6 A

R = 6.7 Ω

t = 42 sec

By using the given formula,

H = $\large{\frac{I^2Rt}{4.2}}$

H = $\large{\frac{(1.6)^2 \times 6.7 \times 42}{4.2}}$

H = $\large{\frac{2.56 \times 6.7 \times 42}{4.2}}$

H = $\large{\frac{720.384}{4.2}}$

$\huge{\boxed{\mathsf{\pink{H = 171.52\:J}}}}$