Chapter 20

Question 1

what is direction of current down into the page?

Answer 1

clockwise

Question 2

What is direction of current out of paper

Answer 2

anticlockwise (4 circles)

Question 3

Current in same direction

Answer 3

same direction attract

Question 4

What will increase the magnetic field

Answer 4

increase magnitude of the current
Reverse the direction of the current m

Question 5

Application of circuit breaker
under normal conditions

Answer 5

Interrupt point remains closed
soft iron latch
solenoid

Question 6

What happens when exceed rating

Answer 6

solenoid becomes a stronger electromagnet and attract iron lach, push safey bar outwards, interrupt point open and circuit open