A torch bulb is rated 2.4 V, 200 mA. What is its resistance?
Answers
Answered by
2
Answer:
12 ohms
Explanation:
V = 2.4 V
A= 200mA=0.2A. (1A=1000mA)
R=?
using ohms law,
V=IR
2.4 = 0.2 x R
R = 2.4 / 0.2
R = 12 OHMS
THEREFORE R = 12 OHMS
Similar questions