Question 102: Current Electricity

Question

To verify Ohm's law, a student is provided with a test resitor RT, a high resistance R1, a small resistance R2, two identical galvanometers G1 and G2, and a variable voltage source V. The correct circuit to carry out the experiment is

Accepted Answer

To verify Ohm's law, we need to measure the voltage across the test resistance R
T
and current passing through it. The voltage can be measured by connecting a high resistance R
1
in series with galvanometer. This combination becomes a voltmeter and should be connected in parallel to R
T
. The current can be measured by connecting a low resistance R
2
(shunt) in parallel with galvanometer. This combination becomes an ammeter and should be connected in series to measure the current through R
T
.

Answer

Answer

Answer

Answer

Current Electricity

To verify Ohm's law, a student is provided with a test resitor RT, a high resistance R1, a small resistance R2, two identical galvanometers G1 and G2, and a variable voltage source V. The correct circuit to carry out the experiment is

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