0
depends on what you are measuring
practical use like electricity or batteries as low as possible
to test voltage on a car battery perhaps 0.1 ohm / volt
to check the final anode on a crt tv at least 1000 ohms per volt
low power circuits require higher impedance
wire connections low impedance
the 10000 ohm per volt meters are fine as fixed monitors but usless for practical service work. they indicate voltage thru oxides and lose screws
they show 120V in a socket when the lamp refuses to light
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∙ 11y ago
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What is the value of internal impedance of ideal current source?
internal resistance is always infinite in ideal current source .the internal resistance is in shunt with current source
What is the input resistance of an ideal current-measuring DMM?
First of all, DMM stands for Digital Multimeter. The -multi implies the meter measures several different parameters, usually voltage, current, resistance, and sometimes other things such as frequency. The input characteristics of a DMM will be very different depending on the parameter selected. For current, the ideal meter would have zero input resistance. Since the ammeter is inserted in series with the circuit under test, any resistance will alter the measured current, introducing error in the measurement.
Input resistance and output resistance of Voltage series feedback amplifier?
output resistance decreases and input resistance increases
What is the resistance of an ideal oscilloscope probe?
The resistance of an ideal oscilloscope probe is infinity.
How a transistor transfers resistance?
The input current of transistor is approximately equal to output current .Suppose in common base configuration the emmiter current is approximately equal to collector current if neglect the very small value of bae current.Even though the input resistance is not equal to output resistance,the currents are same ,so we can reliase that the transistor transfers resistance to get same currents at both ends.
What is ideal value of earth resistance?
3000 ohm
What is ideal value of resistance?
It depends completely on the application
What is the value of internal impedance of ideal current source?
internal resistance is always infinite in ideal current source .the internal resistance is in shunt with current source
An ideal voltage source charges capacitor in?
A: A voltage source Will charge a capacitor to 63% of its input value, The value to get there is stated a Resistance time capacitor as time. Mathematically it will never get there but engineering consider 5 times RC time constant as close enough,
What is the input resistance of an ideal current-measuring DMM?
First of all, DMM stands for Digital Multimeter. The -multi implies the meter measures several different parameters, usually voltage, current, resistance, and sometimes other things such as frequency. The input characteristics of a DMM will be very different depending on the parameter selected. For current, the ideal meter would have zero input resistance. Since the ammeter is inserted in series with the circuit under test, any resistance will alter the measured current, introducing error in the measurement.
What is resistance of an ideal ammeter?
ideal ammeter has zero internal resistance
What is the ideal dc value of output signal when there is no input signal in class b amplifier?
A: If the input is zero the desire output is zero no matter what class it is.
Is the input resitance of an ideal ammeter is low and the output resistance is high?
An ammeter does not have an 'output resistance'. It's important that its resistance is low so as not to add additional resistance into the circuit to which it is connected, otherwise the 'measured current' would be lower than the actual current.
Input resistance and output resistance of Voltage series feedback amplifier?
output resistance decreases and input resistance increases
Ideal resistance of a Amp Meter?
if any thing is ideal then that has no any resistance
What is the resistance of an ideal oscilloscope probe?
The resistance of an ideal oscilloscope probe is infinity.
What is an ideal ammeter?
an ideal ammeter will have zero resistance
