An electric bell keeps ringing while its switch is pressed. Why? | StemPy Lab

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An electric bell keeps ringing while its switch is pressed. Why? | StemPy Lab

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An electric bell keeps ringing while its switch is pressed. Why?

PhysicsMediumHigh School (9–10)Electricity & Magnetism › Magnetic Effects of Current

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An electric bell keeps ringing while its switch is pressed. Why?

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← A student says: If a bar magnet is broken in two, one piece is a north pole and the other is a south pole. What is the mistake?An electrician checks a hidden wire with a field meter. Held 4 cm from the wire, it reads 25 µT. Find the current, using B = 2 × 10⁻⁷ I/r in SI units. →

More onElectricity & Magnetism › Magnetic Effects of Current

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