01. Ohm's Law, Resistance, Conductivity and Thermal Dependency of Resistance
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Current Electricity

151804 Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 \%) \Omega$. The colour of third band must be :

1 Green
2 Orange
3 Yellow
4 Red
Acc. to color code
Current Electricity

151808 Equivalent resistance between the adjacent corners of a regular $n$-sided polygon of uniform wire of resistance $R$ would be :

1 $\frac{(\mathrm{n}-1) \mathrm{R}}{(2 \mathrm{n}-1)}$
2 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}}$
3 $\frac{n^{2} R}{n-1}$
4 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}^{2}}$
JEE Main-01.02.2023
Current Electricity

151810 A wire of certain material is stretched slowly by $10 \%$. Its new resistance and specific resistance become respectively

1 1.21 times, same
2 both remains the same
3 1.1 times, 1.1 times
4 1.2 times, 1.1 times
Karnataka CET-2022
Current Electricity

151811 An aluminium wire is stretched to make its length, $0.4 \%$ larger. Then percentage change in resistance is:

1 $0.4 \%$
2 $0.2 \%$
3 $0.8 \%$
4 $0.6 \%$
JEE Main-26.06.2022
Current Electricity

151812 A galvanometer of resistance $50 \Omega$ is connected to a battery of $3 \mathrm{~V}$ along with a resistance 2950 $\Omega$ in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be

1 $5050 \Omega$
2 $4450 \Omega$
3 $6050 \Omega$
4 $5550 \Omega$
Karnataka CET-2022
NEET DIGITAL LIBRARY
Current Electricity

151804 Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 \%) \Omega$. The colour of third band must be :

1 Green
2 Orange
3 Yellow
4 Red
Acc. to color code
Current Electricity

151808 Equivalent resistance between the adjacent corners of a regular $n$-sided polygon of uniform wire of resistance $R$ would be :

1 $\frac{(\mathrm{n}-1) \mathrm{R}}{(2 \mathrm{n}-1)}$
2 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}}$
3 $\frac{n^{2} R}{n-1}$
4 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}^{2}}$
JEE Main-01.02.2023
Current Electricity

151810 A wire of certain material is stretched slowly by $10 \%$. Its new resistance and specific resistance become respectively

1 1.21 times, same
2 both remains the same
3 1.1 times, 1.1 times
4 1.2 times, 1.1 times
Karnataka CET-2022
Current Electricity

151811 An aluminium wire is stretched to make its length, $0.4 \%$ larger. Then percentage change in resistance is:

1 $0.4 \%$
2 $0.2 \%$
3 $0.8 \%$
4 $0.6 \%$
JEE Main-26.06.2022
Current Electricity

151812 A galvanometer of resistance $50 \Omega$ is connected to a battery of $3 \mathrm{~V}$ along with a resistance 2950 $\Omega$ in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be

1 $5050 \Omega$
2 $4450 \Omega$
3 $6050 \Omega$
4 $5550 \Omega$
Karnataka CET-2022
Join With Us for More Updates
Current Electricity

151804 Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 \%) \Omega$. The colour of third band must be :

1 Green
2 Orange
3 Yellow
4 Red
Acc. to color code
Current Electricity

151808 Equivalent resistance between the adjacent corners of a regular $n$-sided polygon of uniform wire of resistance $R$ would be :

1 $\frac{(\mathrm{n}-1) \mathrm{R}}{(2 \mathrm{n}-1)}$
2 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}}$
3 $\frac{n^{2} R}{n-1}$
4 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}^{2}}$
JEE Main-01.02.2023
Current Electricity

151810 A wire of certain material is stretched slowly by $10 \%$. Its new resistance and specific resistance become respectively

1 1.21 times, same
2 both remains the same
3 1.1 times, 1.1 times
4 1.2 times, 1.1 times
Karnataka CET-2022
Current Electricity

151811 An aluminium wire is stretched to make its length, $0.4 \%$ larger. Then percentage change in resistance is:

1 $0.4 \%$
2 $0.2 \%$
3 $0.8 \%$
4 $0.6 \%$
JEE Main-26.06.2022
Current Electricity

151812 A galvanometer of resistance $50 \Omega$ is connected to a battery of $3 \mathrm{~V}$ along with a resistance 2950 $\Omega$ in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be

1 $5050 \Omega$
2 $4450 \Omega$
3 $6050 \Omega$
4 $5550 \Omega$
Karnataka CET-2022
For More Updates join with Us
Current Electricity

151804 Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 \%) \Omega$. The colour of third band must be :

1 Green
2 Orange
3 Yellow
4 Red
Acc. to color code
Current Electricity

151808 Equivalent resistance between the adjacent corners of a regular $n$-sided polygon of uniform wire of resistance $R$ would be :

1 $\frac{(\mathrm{n}-1) \mathrm{R}}{(2 \mathrm{n}-1)}$
2 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}}$
3 $\frac{n^{2} R}{n-1}$
4 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}^{2}}$
JEE Main-01.02.2023
Current Electricity

151810 A wire of certain material is stretched slowly by $10 \%$. Its new resistance and specific resistance become respectively

1 1.21 times, same
2 both remains the same
3 1.1 times, 1.1 times
4 1.2 times, 1.1 times
Karnataka CET-2022
Current Electricity

151811 An aluminium wire is stretched to make its length, $0.4 \%$ larger. Then percentage change in resistance is:

1 $0.4 \%$
2 $0.2 \%$
3 $0.8 \%$
4 $0.6 \%$
JEE Main-26.06.2022
Current Electricity

151812 A galvanometer of resistance $50 \Omega$ is connected to a battery of $3 \mathrm{~V}$ along with a resistance 2950 $\Omega$ in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be

1 $5050 \Omega$
2 $4450 \Omega$
3 $6050 \Omega$
4 $5550 \Omega$
Karnataka CET-2022
NEET DIGITAL LIBRARY
Current Electricity

151804 Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 \%) \Omega$. The colour of third band must be :

1 Green
2 Orange
3 Yellow
4 Red
Acc. to color code
Current Electricity

151808 Equivalent resistance between the adjacent corners of a regular $n$-sided polygon of uniform wire of resistance $R$ would be :

1 $\frac{(\mathrm{n}-1) \mathrm{R}}{(2 \mathrm{n}-1)}$
2 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}}$
3 $\frac{n^{2} R}{n-1}$
4 $\frac{(\mathrm{n}-1) \mathrm{R}}{\mathrm{n}^{2}}$
JEE Main-01.02.2023
Current Electricity

151810 A wire of certain material is stretched slowly by $10 \%$. Its new resistance and specific resistance become respectively

1 1.21 times, same
2 both remains the same
3 1.1 times, 1.1 times
4 1.2 times, 1.1 times
Karnataka CET-2022
Current Electricity

151811 An aluminium wire is stretched to make its length, $0.4 \%$ larger. Then percentage change in resistance is:

1 $0.4 \%$
2 $0.2 \%$
3 $0.8 \%$
4 $0.6 \%$
JEE Main-26.06.2022
Current Electricity

151812 A galvanometer of resistance $50 \Omega$ is connected to a battery of $3 \mathrm{~V}$ along with a resistance 2950 $\Omega$ in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be

1 $5050 \Omega$
2 $4450 \Omega$
3 $6050 \Omega$
4 $5550 \Omega$
Karnataka CET-2022