05. Heating Effect of Current (Energy, Power)
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Current Electricity

152703 A current of $3 \mathrm{~A}$ flows through the $2 \Omega$ resistor shown in the circuit. The power dissipated in the $5 \Omega$ resistor is

1 $4 \mathrm{~W}$
2 $2 \mathrm{~W}$
3 $1 \mathrm{~W}$
4 $5 \mathrm{~W}$
AIPMT-2008
Current Electricity

152704 Two cities are $150 \mathrm{~km}$ apart. Electric power is sent from one city to another city through copper wires. The fall of potential per $\mathrm{km}$ is 8 $\mathrm{V}$ and the average resistance per $\mathrm{km}$ is $0.5 \Omega$. The power loss in the wire is

1 $19.2 \mathrm{~W}$
2 $19.2 \mathrm{~kW}$
3 $19.2 \mathrm{~J}$
4 $12.2 \mathrm{~kW}$
AIPMT-2014
Current Electricity

152705 If voltage across a bulb rated $220 \mathrm{~V}-100 \mathrm{~W}$ drops by $2.5 \%$ of its rated value, the percentage of the rated value by which the power would decrease is

1 $20 \%$
2 $2.5 \%$
3 $5 \%$
4 $10 \%$
AIPMT-2012
Current Electricity

152706 A heater coil working on mains produces 100 cal of heat in a certain time. Now the heater coil is cut into three equal parts and one part is only used for heating. The quantity of heat produced (in calories) in the same time is

1 300
2 200
3 $100 / 3$
4 $200 / 3$
AP EMCET(Medical)-2008
Current Electricity

152712 If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be :

1 doubled
2 four times
3 one-fourth
4 halved
NDA (II) 2010
NEET DIGITAL LIBRARY
Current Electricity

152703 A current of $3 \mathrm{~A}$ flows through the $2 \Omega$ resistor shown in the circuit. The power dissipated in the $5 \Omega$ resistor is

1 $4 \mathrm{~W}$
2 $2 \mathrm{~W}$
3 $1 \mathrm{~W}$
4 $5 \mathrm{~W}$
AIPMT-2008
Current Electricity

152704 Two cities are $150 \mathrm{~km}$ apart. Electric power is sent from one city to another city through copper wires. The fall of potential per $\mathrm{km}$ is 8 $\mathrm{V}$ and the average resistance per $\mathrm{km}$ is $0.5 \Omega$. The power loss in the wire is

1 $19.2 \mathrm{~W}$
2 $19.2 \mathrm{~kW}$
3 $19.2 \mathrm{~J}$
4 $12.2 \mathrm{~kW}$
AIPMT-2014
Current Electricity

152705 If voltage across a bulb rated $220 \mathrm{~V}-100 \mathrm{~W}$ drops by $2.5 \%$ of its rated value, the percentage of the rated value by which the power would decrease is

1 $20 \%$
2 $2.5 \%$
3 $5 \%$
4 $10 \%$
AIPMT-2012
Current Electricity

152706 A heater coil working on mains produces 100 cal of heat in a certain time. Now the heater coil is cut into three equal parts and one part is only used for heating. The quantity of heat produced (in calories) in the same time is

1 300
2 200
3 $100 / 3$
4 $200 / 3$
AP EMCET(Medical)-2008
Current Electricity

152712 If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be :

1 doubled
2 four times
3 one-fourth
4 halved
NDA (II) 2010
Join With Us for More Updates
Current Electricity

152703 A current of $3 \mathrm{~A}$ flows through the $2 \Omega$ resistor shown in the circuit. The power dissipated in the $5 \Omega$ resistor is

1 $4 \mathrm{~W}$
2 $2 \mathrm{~W}$
3 $1 \mathrm{~W}$
4 $5 \mathrm{~W}$
AIPMT-2008
Current Electricity

152704 Two cities are $150 \mathrm{~km}$ apart. Electric power is sent from one city to another city through copper wires. The fall of potential per $\mathrm{km}$ is 8 $\mathrm{V}$ and the average resistance per $\mathrm{km}$ is $0.5 \Omega$. The power loss in the wire is

1 $19.2 \mathrm{~W}$
2 $19.2 \mathrm{~kW}$
3 $19.2 \mathrm{~J}$
4 $12.2 \mathrm{~kW}$
AIPMT-2014
Current Electricity

152705 If voltage across a bulb rated $220 \mathrm{~V}-100 \mathrm{~W}$ drops by $2.5 \%$ of its rated value, the percentage of the rated value by which the power would decrease is

1 $20 \%$
2 $2.5 \%$
3 $5 \%$
4 $10 \%$
AIPMT-2012
Current Electricity

152706 A heater coil working on mains produces 100 cal of heat in a certain time. Now the heater coil is cut into three equal parts and one part is only used for heating. The quantity of heat produced (in calories) in the same time is

1 300
2 200
3 $100 / 3$
4 $200 / 3$
AP EMCET(Medical)-2008
Current Electricity

152712 If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be :

1 doubled
2 four times
3 one-fourth
4 halved
NDA (II) 2010
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Current Electricity

152703 A current of $3 \mathrm{~A}$ flows through the $2 \Omega$ resistor shown in the circuit. The power dissipated in the $5 \Omega$ resistor is

1 $4 \mathrm{~W}$
2 $2 \mathrm{~W}$
3 $1 \mathrm{~W}$
4 $5 \mathrm{~W}$
AIPMT-2008
Current Electricity

152704 Two cities are $150 \mathrm{~km}$ apart. Electric power is sent from one city to another city through copper wires. The fall of potential per $\mathrm{km}$ is 8 $\mathrm{V}$ and the average resistance per $\mathrm{km}$ is $0.5 \Omega$. The power loss in the wire is

1 $19.2 \mathrm{~W}$
2 $19.2 \mathrm{~kW}$
3 $19.2 \mathrm{~J}$
4 $12.2 \mathrm{~kW}$
AIPMT-2014
Current Electricity

152705 If voltage across a bulb rated $220 \mathrm{~V}-100 \mathrm{~W}$ drops by $2.5 \%$ of its rated value, the percentage of the rated value by which the power would decrease is

1 $20 \%$
2 $2.5 \%$
3 $5 \%$
4 $10 \%$
AIPMT-2012
Current Electricity

152706 A heater coil working on mains produces 100 cal of heat in a certain time. Now the heater coil is cut into three equal parts and one part is only used for heating. The quantity of heat produced (in calories) in the same time is

1 300
2 200
3 $100 / 3$
4 $200 / 3$
AP EMCET(Medical)-2008
Current Electricity

152712 If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be :

1 doubled
2 four times
3 one-fourth
4 halved
NDA (II) 2010
NEET DIGITAL LIBRARY
Current Electricity

152703 A current of $3 \mathrm{~A}$ flows through the $2 \Omega$ resistor shown in the circuit. The power dissipated in the $5 \Omega$ resistor is

1 $4 \mathrm{~W}$
2 $2 \mathrm{~W}$
3 $1 \mathrm{~W}$
4 $5 \mathrm{~W}$
AIPMT-2008
Current Electricity

152704 Two cities are $150 \mathrm{~km}$ apart. Electric power is sent from one city to another city through copper wires. The fall of potential per $\mathrm{km}$ is 8 $\mathrm{V}$ and the average resistance per $\mathrm{km}$ is $0.5 \Omega$. The power loss in the wire is

1 $19.2 \mathrm{~W}$
2 $19.2 \mathrm{~kW}$
3 $19.2 \mathrm{~J}$
4 $12.2 \mathrm{~kW}$
AIPMT-2014
Current Electricity

152705 If voltage across a bulb rated $220 \mathrm{~V}-100 \mathrm{~W}$ drops by $2.5 \%$ of its rated value, the percentage of the rated value by which the power would decrease is

1 $20 \%$
2 $2.5 \%$
3 $5 \%$
4 $10 \%$
AIPMT-2012
Current Electricity

152706 A heater coil working on mains produces 100 cal of heat in a certain time. Now the heater coil is cut into three equal parts and one part is only used for heating. The quantity of heat produced (in calories) in the same time is

1 300
2 200
3 $100 / 3$
4 $200 / 3$
AP EMCET(Medical)-2008
Current Electricity

152712 If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be :

1 doubled
2 four times
3 one-fourth
4 halved
NDA (II) 2010