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Monday, 20 April 2026
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Physics Past Questions and Answers

Topic: Ohm's law, resistivity and conductivity

Jamb Physics Questions - Ohm's law, resistivity and conductivity

Question 1:
An electrical circuit is connected up as shown above, which of the following is correct about the value of current flowing through the 1 ohm resistance?
  • A 12/13A
  • B 13/12A
  • C 1/3A
  • D 3A
  • E 12/7A
View Answer & Explanation
Question 2:
The resistance of a wire depends on
  • A The length of the wire
  • B The diameter of the wire
  • C The temperature of the wire
  • D The resistivity of the wire
  • E All of the above
View Answer & Explanation
Question 3:
In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resistor is
  • A V/8
  • B V/4
  • C V/3
  • D V/2
View Answer & Explanation
Question 4:
Which of the following obeys Ohm's Law?
  • A Glass
  • B Diode
  • C All electrolytes
  • D All metals
View Answer & Explanation
Question 5:
An equipment whose power is 1500W and resistance is 375 ohms would draw a current of
  • A 0.10A
  • B 2.00A
  • C 4.00A
  • D 77.5A
View Answer & Explanation