MCQ
Connecting wires carrying currents in opposite directions are twisted together in using electrical appliances in order to reduce
- AElectrical effect
- ✓Magnetic effect
- CSeebeck effect
- DPeltier effect
✓
Answer
Correct option: B.
Magnetic effect
b
(b)
(b)
Connecling wires are twisted in electrical appliances so that the resultant magnetic fields from consecutive twists are in opposite directions So umulative magnetic effect over a long length will beroughly Zero
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