01. Ohm's Law, Resistance, Conductivity and Thermal Dependency of Resistance
« Previous Topic: 00. Electric Current, Current Density and Drift Velocity Next Topic: 02. Resistivity »
Current Electricity

151961 Assertion: Bending a wire does not effect electrical resistance.
Reason: Resistance of wire is proportional of resistivity of material.

1 If both Assertion and Reason are correct and reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
AIIMS-2016
Current Electricity

151962 Two wires of same metal have the same length but their cross sections are in the ratio $3: 1$. They are joined in series.
The resistance of the thicker wire is $10 \Omega$. The total resistance of the combination is .

1 $5 / 2 \Omega$
2 $40 / 3 \Omega$
3 $40 \Omega$
4 $100 \Omega$
AIIMS-2012
Current Electricity

151963 When the power delivered by a 100 volt battery is 40 watts the equivalent resistance of a circuit is :

1 $100 \mathrm{ohms}$
2 $250 \mathrm{ohms}$
3 $300 \mathrm{ohms}$
4 $350 \mathrm{ohms}$
AIIMS-2011
Current Electricity

151964 Four wires of the same diameter are connected in turn between two points, maintained at the constant potential difference. Their resistivities are; $\rho$ and $L$ (wire1)., $1.2 \rho$ and 1.2L (wire2), $0.9 \rho$ and $0.9 \mathrm{~L}$ (wire 3) and $\rho$ and $1.5 \mathrm{~L}$ (wire4). Rank the wires according to the rates at which energy is dissipated as heat, greatest first

1 $4>3>1>2$
2 $4>2>1>3$
3 $1>2>3>4$
4 $3>1>2>4$
For More Updates join with Us
Current Electricity

151961 Assertion: Bending a wire does not effect electrical resistance.
Reason: Resistance of wire is proportional of resistivity of material.

1 If both Assertion and Reason are correct and reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
AIIMS-2016
Current Electricity

151962 Two wires of same metal have the same length but their cross sections are in the ratio $3: 1$. They are joined in series.
The resistance of the thicker wire is $10 \Omega$. The total resistance of the combination is .

1 $5 / 2 \Omega$
2 $40 / 3 \Omega$
3 $40 \Omega$
4 $100 \Omega$
AIIMS-2012
Current Electricity

151963 When the power delivered by a 100 volt battery is 40 watts the equivalent resistance of a circuit is :

1 $100 \mathrm{ohms}$
2 $250 \mathrm{ohms}$
3 $300 \mathrm{ohms}$
4 $350 \mathrm{ohms}$
AIIMS-2011
Current Electricity

151964 Four wires of the same diameter are connected in turn between two points, maintained at the constant potential difference. Their resistivities are; $\rho$ and $L$ (wire1)., $1.2 \rho$ and 1.2L (wire2), $0.9 \rho$ and $0.9 \mathrm{~L}$ (wire 3) and $\rho$ and $1.5 \mathrm{~L}$ (wire4). Rank the wires according to the rates at which energy is dissipated as heat, greatest first

1 $4>3>1>2$
2 $4>2>1>3$
3 $1>2>3>4$
4 $3>1>2>4$
NEET DIGITAL LIBRARY
Current Electricity

151961 Assertion: Bending a wire does not effect electrical resistance.
Reason: Resistance of wire is proportional of resistivity of material.

1 If both Assertion and Reason are correct and reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
AIIMS-2016
Current Electricity

151962 Two wires of same metal have the same length but their cross sections are in the ratio $3: 1$. They are joined in series.
The resistance of the thicker wire is $10 \Omega$. The total resistance of the combination is .

1 $5 / 2 \Omega$
2 $40 / 3 \Omega$
3 $40 \Omega$
4 $100 \Omega$
AIIMS-2012
Current Electricity

151963 When the power delivered by a 100 volt battery is 40 watts the equivalent resistance of a circuit is :

1 $100 \mathrm{ohms}$
2 $250 \mathrm{ohms}$
3 $300 \mathrm{ohms}$
4 $350 \mathrm{ohms}$
AIIMS-2011
Current Electricity

151964 Four wires of the same diameter are connected in turn between two points, maintained at the constant potential difference. Their resistivities are; $\rho$ and $L$ (wire1)., $1.2 \rho$ and 1.2L (wire2), $0.9 \rho$ and $0.9 \mathrm{~L}$ (wire 3) and $\rho$ and $1.5 \mathrm{~L}$ (wire4). Rank the wires according to the rates at which energy is dissipated as heat, greatest first

1 $4>3>1>2$
2 $4>2>1>3$
3 $1>2>3>4$
4 $3>1>2>4$
Join With Us for More Updates
Current Electricity

151961 Assertion: Bending a wire does not effect electrical resistance.
Reason: Resistance of wire is proportional of resistivity of material.

1 If both Assertion and Reason are correct and reason is the correct explanation of Assertion.
2 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
3 If Assertion is correct but Reason is incorrect.
4 If both the Assertion and Reason are incorrect.
AIIMS-2016
Current Electricity

151962 Two wires of same metal have the same length but their cross sections are in the ratio $3: 1$. They are joined in series.
The resistance of the thicker wire is $10 \Omega$. The total resistance of the combination is .

1 $5 / 2 \Omega$
2 $40 / 3 \Omega$
3 $40 \Omega$
4 $100 \Omega$
AIIMS-2012
Current Electricity

151963 When the power delivered by a 100 volt battery is 40 watts the equivalent resistance of a circuit is :

1 $100 \mathrm{ohms}$
2 $250 \mathrm{ohms}$
3 $300 \mathrm{ohms}$
4 $350 \mathrm{ohms}$
AIIMS-2011
Current Electricity

151964 Four wires of the same diameter are connected in turn between two points, maintained at the constant potential difference. Their resistivities are; $\rho$ and $L$ (wire1)., $1.2 \rho$ and 1.2L (wire2), $0.9 \rho$ and $0.9 \mathrm{~L}$ (wire 3) and $\rho$ and $1.5 \mathrm{~L}$ (wire4). Rank the wires according to the rates at which energy is dissipated as heat, greatest first

1 $4>3>1>2$
2 $4>2>1>3$
3 $1>2>3>4$
4 $3>1>2>4$
For More Updates join with Us