REET · Mathematics and Science (Level 2)
Electricity and Magnetism
Current, circuits, magnets and electromagnetic effects.
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Take a full mock →Q1 · Electricity and Magnetism · EASY
A student sets up a simple electric circuit with one bulb, one cell, and connecting wires. The bulb does not light up. Which of the following is NOT a possible reason for the bulb not lighting?
Q2 · Electricity and Magnetism · MEDIUM
A bar magnet is broken into two equal pieces. What will be the nature of the two pieces?
Q3 · Electricity and Magnetism · HARD
A coil of insulated copper wire is connected to a galvanometer. A bar magnet is quickly pushed into the coil from one end. The galvanometer shows a deflection. When the magnet is held stationary inside the coil, the galvanometer shows no deflection. When the magnet is quickly pulled out, the galvanometer again shows a deflection in the opposite direction. This experiment demonstrates which of the following principles?
Q4 · Electricity and Magnetism · MEDIUM
If three resistors of 3Ω, 6Ω, and 9Ω are connected in parallel, the equivalent resistance will be: