Rule on these magnetism claims

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   A current in a straight wire makes circular field lines round it.

2. Statement is true

   Yes

   Statement

   The right hand thumb rule gives the direction of those field lines.

3. Statement is true

   No

   Statement

   In Fleming's left hand rule the forefinger stands for current.

4. Statement is true

   Yes

   Statement

   The field inside a current carrying solenoid is uniform.

5. Statement is true

   Yes

   Statement

   A fuse melts once the current climbs past the safe value.

6. Statement is true

   No

   Statement

   The Indian domestic mains runs at 220 volts and 60 hertz.

7. Statement is true

   Yes

   Statement

   An electric motor turns electrical energy into motion.

Instructions

Tap true or false for each claim about currents, magnets and household wiring.

Explanation