Electromagnetism

Question 1 of 10

An electric motor converts

Question 2 of 10

A wire 0.5 m long carries 4 A at right angles to a field of 0.2 T. The force on it is

Question 3 of 10

Fleming's left-hand rule gives the direction of the

Question 4 of 10

The strength of an electromagnet increases if you

Question 5 of 10

The strength of an electromagnet can be increased by

Question 6 of 10

Two parallel wires carrying currents in the same direction

Question 7 of 10

An electron moving at 10⁶ m/s perpendicular to a 0.01 T field experiences a force of (e = 1.6 × 10⁻¹⁹ C)

Question 8 of 10

An electric bell uses

Question 9 of 10

An electric bell works because it contains

Question 10 of 10

A wire 0.2 m long carries 4 A at right angles to a magnetic field of 0.5 T. What force acts on it?