Physics

1An electric bell works because it contains

2An electric bell uses

3The magnetic field around a straight current-carrying wire forms

4Fleming's left-hand rule gives the direction of the

5Two parallel wires carrying currents in the same direction

6An electric motor converts

7A wire 0.2 m long carries 4 A at right angles to a magnetic field of 0.5 T. What force acts on it?

8The strength of an electromagnet increases if you

9An electron moving at 10⁶ m/s perpendicular to a 0.01 T field experiences a force of (e = 1.6 × 10⁻¹⁹ C)

10A wire 0.5 m long carries 4 A at right angles to a field of 0.2 T. The force on it is