Question text
32 Why is a relay used in a switching circuit? A to switch on a small current using a small current B to switch on a small current using a large current C to switch on a large current using a small current D to switch on a large current using a large current
32 Why is a relay used in a switching circuit?
A to switch on a small current using a small current
B to switch on a small current using a large current
C to switch on a large current using a small current
D to switch on a large current using a large current
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