Chapter 22 – Current Electricity
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A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves
22
Aug
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics [...]
Which of the following acts as a circuit protection device ?
22
Aug
Which of the following acts as a circuit protection device ? Which of the following acts as a circuit protection device ? August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is 30×10^−5 g C^−1, the mass of copper deposited on the electrode will be
22
Aug
A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is 30×10^−5 g C^−1, the mass of copper deposited on the electrode will be A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is [...]
A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. If the radius were helved and the temperature doubled, the power radiated in watt would be
22
Aug
A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. If the radius were helved and the temperature doubled, the power radiated in watt would be A spherical black body with a radius of 12 cm radiates 450 W power at 500 K. If the radius were helved [...]
Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K1 and K2. The thermal conductivity of the composite rod will be :
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Aug
Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K1 and K2. The thermal conductivity of the composite rod will be : Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K1 and K2. The [...]
The mean free path of electrons in a metal is 4×10^−8m. The electric field which can give on an average 2 eV energy to an electron in the metal will be in units of Vm^-1
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Aug
The mean free path of electrons in a metal is 4×10^−8m. The electric field which can give on an average 2 eV energy to an electron in the metal will be in units of Vm^-1 The mean free path of electrons in a metal is 4×10^−8m. The electric field which can give on an average [...]
Power dissipated across the 8Ω resistor in the circuit shown here is 2W. The power dissipated in watt units across the 3Ω resistor is
22
Aug
Power dissipated across the 8Ω resistor in the circuit shown here is 2W. The power dissipated in watt units across the 3Ω resistor is Power dissipated across the 8Ω resistor in the circuit shown here is 2W. The power dissipated in watt units across the 3Ω resistor is August 22, 2020 Category: Chapter 22 - [...]
The total power dissipated in watts in the circuit shown here is
22
Aug
The total power dissipated in watts in the circuit shown here is The total power dissipated in watts in the circuit shown here is August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
A current of 3 A flows through the 2 ohm resistor shown in the circuit. The power dissipated in the 5 ohm resistor is:
22
Aug
A current of 3 A flows through the 2 ohm resistor shown in the circuit. The power dissipated in the 5 ohm resistor is: A current of 3 A flows through the 2 ohm resistor shown in the circuit. The power dissipated in the 5 ohm resistor is August 22, 2020 Category: Chapter 22 - [...]
An electric kettle takes 4A current at 220V. How much time will it take to boil 1 kg of water from temperature 20 degree C?
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Aug
An electric kettle takes 4A current at 220V. How much time will it take to boil 1 kg of water from temperature 20 degree C? An electric kettle takes 4A current at 220V. How much time will it take to boil 1 kg of water from temperature 20 degree C? August 22, 2020 Category: Chapter [...]