The diagram shows the main pans of one type of ammeter. There are two short iron bars inside a coil of insulated wire. One bar is fixed and cannot move and the other is on the end of a pivoted pointer. The diagram shows the ammeter in use and measuring a current of 1.5 amperes (A).

a. How much electrical charge will pass through this ammeter in one minute? Include in your answer the equation you are going to use. Show clearly how you get to your final answer and give the unit.

b. i. Apart from heat, what will be produced by the coil of wire when the electricity passes through it?

ii. What effect will this have on the two iron bars? What causes the effect? Draw one or more diagrams if this will help you to explain.

Transcribed Image Text:

-terminal -moving iron bar -fixed iron bar pivot -coil of wire -spring pointer 2.