
Bridge and Measurement Concepts
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
SALINI THANKACHAN
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define accuracy and precision in the context of measurements.
Accuracy is the variability of measurements, while precision is the exactness of a measurement
Accuracy is the closeness of a measured value to a standard or known value, while precision is the closeness of two or more measurements to each other.
Accuracy is the consistency of measurements, while precision is the range of measurements
Accuracy is the number of measurements taken, while precision is the average of those measurements
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the calculation of sensitivity values in instruments.
Sensitivity values are calculated by multiplying the input and output values.
Calculate sensitivity values by dividing the change in output by the change in input.
To calculate sensitivity, divide the output by the input.
Sensitivity values are determined by subtracting the input from the output.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can a galvanometer be converted into an ammeter?
By connecting a low resistance shunt in parallel with the galvanometer.
By connecting a capacitor in series with the galvanometer.
By connecting a high resistance shunt in parallel with the galvanometer.
By connecting a resistor in series with the galvanometer.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discuss the working principle of Wheatstone's bridge.
The working principle of Wheatstone's bridge is based on the null deflection method, where the bridge is balanced by adjusting known resistances until the voltage difference is zero, allowing the calculation of the unknown resistance.
Wheatstone's bridge works by measuring the resistance of the bridge itself.
The working of Wheatstone's bridge is based on the principle of electromagnetic induction.
The principle of Wheatstone's bridge involves using magnetic fields to balance the circuit.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are hysteresis effects in instruments and how do they impact measurements?
Hysteresis effects only impact measurements in digital instruments.
Hysteresis effects are always beneficial for accurate measurements.
Hysteresis effects cause instruments to respond instantly to changes in input signals.
Hysteresis effects in instruments are delays in the instrument's response to changes in the input signal, leading to discrepancies between the actual and measured values.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the Schering's bridge method for measuring capacitance.
The Schering's bridge method involves using magnetic fields to measure capacitance.
In the Schering's bridge method, the unknown capacitance is compared to a known resistance.
Schering's bridge method is used to measure inductance instead of capacitance.
The Schering's bridge method for measuring capacitance involves balancing the unknown capacitance with a known capacitance in a bridge circuit and calculating the unknown capacitance based on the bridge balance condition.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
List the steps involved in converting a galvanometer into a voltmeter.
Remove the galvanometer entirely
Replace the galvanometer with a voltmeter directly
Connect the galvanometer in parallel with a resistor
Add a high resistance in series with the galvanometer, known as a multiplier resistor.
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