Page 4 - HA
P. 4
Date: ________________
1. Why doesn’t compass needle deflect when switch is off in the circuit?
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2. What happens when the current direction is reversed?
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3. What did the Oersted experiment demonstrate?
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4. How to find out the direction of deflection of compass needle?
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5. Why doesn’t the compass needle deflect when it is placed perpendicular to the
wire?
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