List of top Physics Questions on Ohm’s Law

The formula for power of a lens is:
If \( E_1 = 4V \) and \( E_2 = 12V \), the current in the circuit and potential difference between the points P and Q respectively are:
the current in the circuit and potential difference
Two identical cells gave the same current through an external resistance of \( 2 \)$\omega$ regardless of whether the cells are grouped in series or parallel. The internal resistance of the cells is:
The current through a conductor is $ a $ when the temperature is 0°C. It is $ b $ when the temperature is 100°C. The current through the conductor at 220°C is:
A cell of emf E and internal resistance r is connected to two external resistances R1 and R2 and a perfect ammeter. The current in the circuit is measured in four different situations:
Pick the correct answer from the following two statements :
  1. Ohm's law is applicable to semiconductors.
  2. Ohm's law is applicable to metallic conductors.
The relationship between current and voltage is established by the scientist
According to Ohm's law relation between potential difference (V) and current (I) is
Which of the following relation represents Ohm's law?
Ohm's law is applicable to
Which of the following materials obeys the Ohm's law?