Home
»
Ohm's Law
» 8 » c
This voltage is needed to cause a current of 200 mA to flow in a lamp of 25 ohm resistance:
a.
5 volt
b. 8 volt
c.
175 volt
d. 225 volt
Your answer "c" is not correct. "a" is the right answer.
E = I x R
= 0.2 x 25
= 5 volts.
Next