Ohm's law - Jamb Physics Past Questions and Answers

Question 21:

• JAMB 1995

A 12V battery has an internal resistance of 0.5W.If a cable of 1.0W resistance is connected across the two terminals of the battery, the current drawn from the battery is

A. 16.0A
B. 8.0A
C. 0.8A
D. 0.4A

Question 22:

• JAMB 2013

Which of the following obeys ohms laws?

A. Electroytes
B. Metals
C. Diode
D. Glass

Question 23:

• JAMB 2018

Which of the following obeys Ohm's law?

A. All metals
B. Diode only
C. All electrolytes
D. Glass