The resistance of the circuit is found by measuring current flowing and power fed into the circuit. If limiting errors in the measurement of power and current are ± 2.5% and ± 1.5%. Respectively, the limiting error in the measurement of resistance will be _______ (in percentage)
The battery voltage of an analog multimeter drops by 20% of its original value. The multimeter is used to measure dc voltage of a circuit. The true voltage compared to the measured value is
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A 50 V range voltmeter has a sensitivity of 40 KΩ/V. The total resistance of the voltmeter is – (in MΩ)
A voltmeter has 100 scale divisions and can measure up to 200 V. Each division can be read up to 1/5 division. The resolution of the voltmeter is – (in V)
A resistance is determined by voltmeter ammeter method. The voltmeter reads 100 V with a probable error of ±12 V and ammeter reads 10 A with a probable error of ±2 A. Determine the probable error in the computed value of resistance
A voltage reading is to be taken across the load Resistor R_{L} in the circuit shown below. A voltmeter with a sensitivity 10 kΩ/V and a guaranteed accuracy of ± 5 % at full scale is to be used on its 20 V range. The maximum voltmeter reding that could be expected is __ (in V)
The resistance is measured by the voltmeter ammeter method the voltmeter reding is 50 V on 100 V scale and ammeter reading is 50 mA on 100 mA scale. If both the meters are guaranteed for accuracy with 2% of full scale, what is the limit within which resistance (in Ω ) can be measure?
A 150 ± 10% Ω resistor is connected to the terminals of a power supply operating at 200 ± 0V. If the resistor varies over the range ± 10% of its expected value, what is the range of error in this current.
Which one of the following statement is not correct?
The current I flowing through a resistance of value 100 Ω ± 0.2% is I = 4A ± 0.5% the uncertainty in measurement of power is
24 docs263 tests

24 docs263 tests
