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Why should a voltmeter have

What is the maximum equipment needed to determine the power dissipated in a resistor of unknown value?1) a voltmeter, only 2) An
1. 4 answers
2. asked by Thomas
3. 2,213 views
Why should a voltmeter have a hisg resistance? How should a voltmeter be connected to the componenets of which the voltage is
1. 1 answer
2. asked by Harley
3. 506 views
The red wire on a voltmeter is the cathode and the black is the anode. This would also give a positive reading on the voltmeter.
1. 0 answers
2. asked by Mike
3. 725 views
A) If voltmeter measures 2V across a 50 ohm resistor what current goes through the resistor?B) The voltmeter itself has 10Mohm
1. 1 answer
2. asked by Anonymous
3. 522 views
Which ONE of the following gives the correct comparison between the voltmeter and ammeter readings in circuit P and Q?Question 1
1. 1 answer
2. 39 views
The resistance of a resistor needs to be determined using the voltmeter-ammeter method. The voltmeter, connected directly across
1. 1 answer
2. 29 views
The resistance of a resistor needs to be determined using the voltmeter-ammeter method. The voltmeter, connected directly across
1. 1 answer
2. 24 views
1)a galvanometer has a resistance of 40 ohm and is of 3 mA full-scale deflection.how would you modify it to act as a 0-5 A
1. 2 answers
2. asked by ruth
3. 1,138 views
QuestionTo accurately measure the current across both R1 and R2, where should the ammeter be positioned, and for precise
1. 1 answer
2. asked by >_>
3. 66 views
a 2 microfarad and an electrostatic voltmeter are connected to a 500 Volts supply. after disconnection the voltmeter reading
1. 1 answer
2. asked by al mendez
3. 889 views