Please answer all parts Indicate how to measure the voltage difference between t

Question

Please answer all parts Indicate how to measure the voltage difference between the terminals of a resistance. Why is the voltmeter connected in parallel? Which is the order 1) of magnitude of its internal resistance? Indicate how to measure the current that flow through a circuit. Why is the amperemeter connected in series? Which is the order of magnitude of its 2) internal resistance? 3) Which is the value of a resistance with the following colour code: silver, brown, violet, yellow? do F10 Fm 8

Explanation / Answer

To measure potential difference across a resistor we use a voltmeter in the circuit. A voltmeter is a device which can be made by a gelvenometer by joining a high resistance resistor to it in series.

In a circuit voltmeter is connected in parallel to the resistor because potential drop across both remains same in this combination.

Similarly ammeter is connected in series to measure current in a circuit because current remains same in this combination.

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