explain how a magnetic needle and a bulb help in testing conduction of electricity by different materials. which of the two is more effective in testing the conduction of electricity by liquids
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write again properly.
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Magnetic Effect
Explanation:
Magnetic needle shows deflection due to conduction of electricity through the answer. It's called magnetic effect of electrical current.
The magnitude of magnetic flux increases with increase in current and reduces with decrease in current.
The magnitude of magnetic flux produced by current decreases with increase in distance and vice – versa.
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