The equivalent resistance between and (of the circuit shown) is
1
2
3
4
Official Solution
Correct Option:
(1)
are in parallel and are in parallel and both combinations are in series. So,
02
PYQ 2007
medium
physicsID: amueee-2
A boiler used for day consumes the following electrical energy in thirty days
1
60 unit
2
120 unit
3
15 unit
4
unit
Official Solution
Correct Option:
(1)
Number of units Number of units unit
03
PYQ 2010
hard
physicsID: amueee-2
For the current loops shown in the figure, Kirchhoff's loop rule for the loops and AHDEFGA yields these equations respectively
1
and
2
and
3
and
4
None of the above
Official Solution
Correct Option:
(4)
Applying Kirchhoff's loop rule for the closed loop
04
PYQ 2011
medium
physicsID: amueee-2
Two wires and of equal masses and of the same metal are taken. The diameter of the wire is half the diameter of the wire . If the resistance of wire be , the resistance of will be
1
2
3
4
Official Solution
Correct Option:
(2)
As both the wires and are made up of the same metal, therefore their resistivity as well their density are the same Mass of a wire volume Density Mass of a wire
where is the density and is the diameter and subscript for wire Mass of a wire (Given)
Resistance of wire ,
Resistance of wire ,
Divide by , we get Using (i)) But (Given) or
05
PYQ 2012
medium
physicsID: amueee-2
A battery of emf with internal resistance is being charged by a supply using a series resistance of . The terminal voltage of the battery is
1
2
3
4
Official Solution
Correct Option:
(3)
Emf of the battery , emf of supply
Since, the battery is bring changes, so effective emf in the circuit
Current in the circuit
The battery of is being charged by , so the terminal potential across battery of will be greater than its emf. Terminal potential difference
06
PYQ 2013
medium
physicsID: amueee-2
In the potentiometer circuit shown in the figure, the balance length when switch is open. When switch S is closed and the value of , balance length . The internal resistance of the cell is
1
2
3
4
Official Solution
Correct Option:
(2)
Here, , ,
where is the potential gradient across the wire
Internal resistance of the cell is
07
PYQ 2014
medium
physicsID: amueee-2
In a given circuit, each cell has an emf of and internal resistance of . Find the current in the circuit.
1
0.12 A
2
0.012 A
3
0.045 A
4
0.45 A
Official Solution
Correct Option:
(3)
Number of cell Number of row Internal resistance
We know that,
08
PYQ 2014
medium
physicsID: amueee-2
Arrange the following materials in the increasing order of their resistivity. Copper, Platinum, Silver, Aluminium
1
Copper, Silver, Platinum, Aluminium
2
Silver, Copper, Aluminium, Platinum
3
Aluminium, Platinum, Silver, Copper
4
Platinum, Aluminium, Copper, Silver
Official Solution
Correct Option:
(2)
Silver Copper $
09
PYQ 2015
medium
physicsID: amueee-2
A wire when connected to mains supply has power dissipation . Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is is
1
1
2
4
3
2
4
3
Official Solution
Correct Option:
(2)
When wire of resistance say R is cut into two pieces, its resistance becomes half i.e. R /2. Here equivalent resistance
or
10
PYQ 2016
medium
physicsID: amueee-2
Three resistances each of and an unknown resistance form the four arms of a Wheatstone bridge circuit. When a resistance of is connected in parallel to the bridge gets balanced. What is the value of ?
1
2
3
4
Official Solution
Correct Option:
(1)
for balanced wheatstone bridge circuit
11
PYQ 2018
medium
physicsID: amueee-2
Figure shows a potentiometer. Length of the potentiometer wire is and its resistance is . of the battery is . A resistance of draws current from the potentiometer. What is the voltage across when the sliding contact is at the mid-point of ?
1
2
3
4
Official Solution
Correct Option:
(1)
Given, , and Circuit according to the question,
Net resistance of the circuit,
Current from the battery, Using in mesh ,
12
PYQ 2018
hard
physicsID: amueee-2
Figure shows a potentiometer. Length of the potentiometer wire is and its resistance is . of the battery is . A resistance of draws current from the potentiometer. What is the voltage across when the sliding contact is at the mid-point of ?
1
2
3
4
Official Solution
Correct Option:
(1)
Given, , and Circuit according to the question,
Net resistance of the circuit,
Current from the battery, Using in mesh ,
About Current Electricity - AMUEEE
Current Electricity is a vital chapter for AMUEEE aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Current Electricity PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Current Electricity carry the most weight. Then, tackle the questions iteratively to solidify your understanding.
