100+ Physics Question and Answer for Competitive Exams - 1
What are the two basic types of connection?
The two types of connections are
What is a microphone?
Microphone is a device which converts sound energy into electrical energy.
What is a transformer?
A transformer is a device by which a low voltage in a circuit can be converted into a high voltage in a neighbouring circuit.
Define one joule?
The potential at a point of the amount of work done in bringing one Coulomb positive charge from infinity to that point is one joule.
Define one ohm?
One Ohm is defined as the resistance of a conductor through which one ampere current flows when a potential difference of one volt is maintained between its two ends.
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