You connect a voltmeter to an unknown resistor in a circuit in order to measure the potential difference across that resistor. how should you connect it to the resistor and what would the voltmeter's ideal internal resistance be? a. in series fint b. in parallel; int- o c. in series; rint- 0 d. in parallel; rint →

A. In series Fint

Explanation:

If you connect it to the resistor, the voltmeter's ideal internal resistance be  In series Fint.

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

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