Consider the following circuit :
What would be the readings of the ammeter and the voltmeter when key is closed ?
Give reason to justify your answers.
OR
What is electrical resistivity ? Derive its SI unit. In a series electrical circuit
comprising a resistor made up of a metallic wire, the ammeter reads 100 mA. If the
length of the wire is doubled, how will the current in the circuit change ? Justify your
answer.
Answers
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Answer:
The ammeter reads the flow of current passes through the circuit.its works like Galvanometer..
The voltmeter reads the flow of voltage given by battery through circuit
or
Voltmeter measures voltage between two points...
Explanation:
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