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Test: Voltage Divider - GATE MCQ


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15 Questions MCQ Test - Test: Voltage Divider

Test: Voltage Divider for GATE 2024 is part of GATE preparation. The Test: Voltage Divider questions and answers have been prepared according to the GATE exam syllabus.The Test: Voltage Divider MCQs are made for GATE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Voltage Divider below.
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Test: Voltage Divider - Question 1
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Where voltage division problem arises

Detailed Solution for Test: Voltage Divider - Question 1
In series, voltage is the difference and current same.
Test: Voltage Divider - Question 2
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If there are 3 Resistors R1, R2 and R3 in series and V is total voltage and I is total current then Voltage across R2 is

Detailed Solution for Test: Voltage Divider - Question 2
V2 = I R2

= V R2 / R1 + R2 + R3.

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Test: Voltage Divider - Question 3
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Calculate Voltage across 2Ω Resistor where supply v = 10 volts.

Detailed Solution for Test: Voltage Divider - Question 3
I = 10 / 5 = 2A

V2 = 10(2)

V2 = I.R2 = 2(2)

= 4V.

Test: Voltage Divider - Question 4
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R1 = 1Ω, R2 = 3Ω, R3 = 5Ω and R4 = 7Ω connected in series. Total voltage = 20V, Current I, V2 =?
Detailed Solution for Test: Voltage Divider - Question 4
I = 20 / 1 + 3 + 5 + 7 = 1.25A

V2 = V. R2 / R1 + R2 + R3 + R4

= 20(3) / 16

= 3.75V.

Test: Voltage Divider - Question 5
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Voltage division is necessary for parallel resistance networks
Detailed Solution for Test: Voltage Divider - Question 5
In parallel, connection voltage is the same, so no division is required.
Test: Voltage Divider - Question 6
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An ideal voltage source is that which has an internal resistance
Detailed Solution for Test: Voltage Divider - Question 6
The internal resistance of an ideal voltage source is zero; it can supply or absorb any amount of current. The external circuit ultimately determines the current through a perfect voltage source. There is zero current and zero power when connected to an open circuit.
Test: Voltage Divider - Question 7
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How can measurement the voltage divider in the circuit?
Detailed Solution for Test: Voltage Divider - Question 7
A voltage divider can scale down a very high voltage to be measured by a voltmeter. The high voltage is applied across the divider, and the divider output—which outputs a lower voltage within the meter's input range—is measured by the meter.
Test: Voltage Divider - Question 8
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What is the unit for voltage?
Detailed Solution for Test: Voltage Divider - Question 8
Volt: The volt is the unit of electric potential difference—the electric potential difference is also known as voltage. The size of 1 volt is officially defined as the potential difference between two points of a wire carrying a current of 1 ampere when the power dissipated in the wire is 1 watt.
Test: Voltage Divider - Question 9
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An ideal voltage source and internal resistance is an example of the
Detailed Solution for Test: Voltage Divider - Question 9
The internal resistance of an ideal voltage source is zero; it can supply or absorb any amount of current. The external circuit ultimately determines the current through a perfect voltage source.
Test: Voltage Divider - Question 10
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A real voltage source has
Detailed Solution for Test: Voltage Divider - Question 10
A real-world voltage source has a very low but non-zero internal resistance and output impedance, often much less than 1 ohm. Conversely, a current source provides a constant current, as long as the load connected to the source terminals has sufficiently low impedance.
Test: Voltage Divider - Question 11
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An ideal voltage source has
Detailed Solution for Test: Voltage Divider - Question 11
The internal resistance of an ideal voltage source is zero; it can supply or absorb any amount of current. The external circuit ultimately determines the current through a perfect voltage source. There is zero current and zero power when connected to an open circuit.
Test: Voltage Divider - Question 12
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For a voltage source to be neglected, the terminals across the head should be ___________.
Detailed Solution for Test: Voltage Divider - Question 12
If the voltage source is neglected, it can be replaced simply using a wire, i.e., it should be short-circuited.
Test: Voltage Divider - Question 13
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Voltage source and terminal voltage can be related as ___________.
Detailed Solution for Test: Voltage Divider - Question 13
A practical voltage source can be represented with a resistance in series with the source. Hence, some voltage drop at the resistor, and the terminal voltage is always lower than the source emf.
Test: Voltage Divider - Question 14
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A practical voltage source can also be represented as ___________.
Detailed Solution for Test: Voltage Divider - Question 14
A practical voltage source could be represented with a resistor in series with an ideal voltage source.
Test: Voltage Divider - Question 15
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A voltage source is having an open-circuit voltage of 200 V and internal resistance of 50Ω is equivalent to a current source of ___________.
Detailed Solution for Test: Voltage Divider - Question 15
A voltage source with resistance in series can be replaced with a current source with the resistance in parallel.
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