Related Questions

An ammeter has a resistance of G ohms and range of I amperes. The value of resistance required in parallel to convert it into an ammeter of range nI is ___________.
A nG
B (n - 1)G
C $$\frac{{\text{G}}}{{{\text{n}} - 1}}$$
D $$\frac{{\text{G}}}{{\text{n}}}$$
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively The current in each branch is
A 6.4 A, 6.9 A
B 6.4 A, 9.6 A
C 4.6 A. 6.9 A
D 4.6 A, 9.6 A
Usual value of the resistance suitable for a wire resistance strain gauge is __________ ohms.
A 20
B 80
C 120
D 500
The higher the range setting, the less the internal resistance and the greater the load effect of the voltmeter on a circuit.
A True
B False
A voltmeter should have ___________ resistance.
A Zero
B Very high
C Very low
D None of the above
The resistance of an ideal voltmeter is ___________
A Low
B Infinite
C Zero
D High
With zero volts on both inputs, an OP-amp ideally should have an output ___________
A equal to the positive supply voltage
B equal to the negative supply voltage
C equal to zero
D equal to CMRR
If the energy is supplied from a source, whose resistance is 1 ohm, to a load of 100 ohms the source will be
A A voltage source
B A current source
C Both of above
D None of the above
What resistance in ohms should be displayed when testing a speaker in a computer?
A Q Ohms
B 16 Ohms
C -200 Ohms
D Unlimited Ohms
E None of the above
On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?
A 1 V
B 50 V
C 500 V
D 1,000 V

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