BITSAT SERIES Physics
Resistance
19 previous year questions.
Volume: 19 Ques
Yield: Medium
High-Yield Trend
2
2025 2
2023 1
2021 1
2020 3
2019 1
2016 1
2015 2
2014 1
2013 2
2012 1
2011 1
2009 1
2006 Chapter Questions 19 MCQs
01
PYQ 2006
medium
physics ID: bitsat-2
A cell of constant emf first connected to a resistance and then connected to a resistance . If power delivered in both cases is same then the internal resistance of the cell is :
1
2
3
4
02
PYQ 2009
medium
physics ID: bitsat-2
In the adjacent shown circuit, a voltmeter of internal resistance , when connected across an reads .
Neglecting the internal resistance of the battery, the value of is
1
2
3
4
03
PYQ 2011
medium
physics ID: bitsat-2
Calculate the effective resistance between points A and B in the given electrical network.
1
5 Ω
2
10 Ω
3
20 Ω
4
30 Ω
04
PYQ 2012
medium
physics ID: bitsat-2
A letter 'A' is constructed of a uniform wire with resistance 1.0 per cm. The sides of the letter are 20 cm and the cross piece in the middle is 10 cm long. The apex angle is 60°. The resistance between the ends of the legs is close to:
1
50.0
2
10
3
36.7
4
26.7
05
PYQ 2012
medium
physics ID: bitsat-2
A letter ' ' is constructed of a uniform wire with resistance per , The sides of the letter are and the cross piece in the middle is long. The apex angle is . The resistance between the ends of the legs is close to:
1
2
3
4
06
PYQ 2013
medium
physics ID: bitsat-2
What should be the characteristic of fuse wire?
1
High melting point, high specific resistance
2
High melting point, low specific resistance
3
Low melting point, low specific resistance
4
Low melting point, high specific resistance
07
PYQ 2014
hard
physics ID: bitsat-2
A wire X is half the diameter and half the length of a wire Y of similar material. The ratio of resistance of X to that of Y is:
1
2
3
4
08
PYQ 2014
medium
physics ID: bitsat-2
A wire is half the diameter and half the length of a wire of similar material. The ratio of resistance of to that of is
1
8:01
2
4:01
3
2:01
4
1:01
09
PYQ 2015
medium
physics ID: bitsat-2
The resistance of a wire is . It is bent at the middle by and the ends are twisted together to make a shorter wire. The resistance of the new wire is:
1
2
3
4
10
PYQ 2016
medium
physics ID: bitsat-2
Two resistances at 0°C with temperature coefficients of resistance alpha₁ and alpha₂ joined in series act as a single resistance in a circuit. The temperature coefficient of their single resistance will be:
1
2
3
4
(alpha₁+alpha₂)/(2)
11
PYQ 2019
medium
physics ID: bitsat-2
Twelve resistors each of resistance are connected in the circuit as shown. The net resistance between and is
1
2
3
4
12
PYQ 2019
medium
physics ID: bitsat-2
The resistance of a wire is R. It is bent at the middle by 180^∘ and both ends are twisted together to make a short of the new wire. The resistance of the new wire is
1
2
3
4
(R)/(8)
13
PYQ 2019
medium
physics ID: bitsat-2
The resistance of a wire is R. It is bent at the middle by 180^∘ and both the ends are twisted together to make a shorter wire. The resistance of the new wire is
1
2
3
4
(R)/(8)
14
PYQ 2020
medium
physics ID: bitsat-2
Two resistances at 0^∘C with temperature coefficient of resistance alpha₁ and alpha₂ joined in series act as a single resistance in a circuit. The temperature coefficient of their single resistance will be:
1
2
3
4
(alpha₁+alpha₂)/(2)
15
PYQ 2021
medium
physics ID: bitsat-2
A meter bridge is set up as shown, to determine an unknown resistance X using a standard 10Ω resistance. The balance point is obtained when tapping key is at 52cm mark. The end corrections are 1cm and 2cm respectively for the ends A and B. The determined value of X is 
1
10.2Ω
2
10.6Ω
3
10.8Ω
4
11.1Ω
16
PYQ 2023
medium
physics ID: bitsat-2
The effect of an increase in temperature on the number of electrons in the conduction band ( ) and the resistance of a semiconductor will be as follows:
1
Both and resistance decrease
2
Both and resistance increase
3
increases, resistance decreases
4
decreases, resistance increases
17
PYQ 2023
medium
physics ID: bitsat-2
The resistance of a wire is . What will be its new resistance in ohms if stretched to 5 times its original length?
1
2
3
4
18
PYQ 2025
medium
physics ID: bitsat-2
A resistor of resistance is connected across a battery. Calculate the current flowing through the resistor.
1
2
3
4
19
PYQ 2025
easy
physics ID: bitsat-2
A coil of resistance 10 is connected to a battery of 12 V. If the current flowing through the coil is 2 A, what is the power dissipated in the coil?
1
40 W
2
10 W
3
24 W
4
30 W