Part 2
The power dissipated 6 ohm resistor is
02
Dec
The power dissipated 6 ohm resistor is The power dissipated 6 ohm resistor is December 2, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part 2 ,
Water of volume 2 litre in a container is heated with a coil of 1kW at 27^∘C. The lid of the container is open and energy dissipates at rate of 160J/s. In how much time temperature will rise from 27^∘C to 77^∘C [Given specific heat of water is 4.2kJ/kg degree C]
02
Dec
Water of volume 2 litre in a container is heated with a coil of 1kW at 27^∘C. The lid of the container is open and energy dissipates at rate of 160J/s. In how much time temperature will rise from 27^∘C to 77^∘C [Given specific heat of water is 4.2kJ/kg degree C] If the current in [...]
In the previous problem, if the coils are connected in parallel, the time taken will be
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Dec
In the previous problem, if the coils are connected in parallel, the time taken will be if the coils are connected in parallel In the previous problem the time taken will be December 2, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part 2 ,
Two heater coils separately take 10 minute and 5 minute to boil certain amount of water. If both the coils are connected in series, the time taken will be
02
Dec
Two heater coils separately take 10 minute and 5 minute to boil certain amount of water. If both the coils are connected in series, the time taken will be the time taken will be Two heater coils separately take 10 minute and 5 minute to boil certain amount of water. If both the coils are [...]
For ensuring dissipation of same energy in all three resistors (R1,R2,R3) connected as shown in figure, their values must be related as
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Dec
For ensuring dissipation of same energy in all three resistors (R1,R2,R3) connected as shown in figure, their values must be related as For ensuring dissipation of same energy in all three resistors ( R1 R2 R3 ) connected as shown in figure their values must be related as December 2, 2020 Category: Cengage NEET by [...]
You are given a resistance coil and a battery. In which of the following cases is largest amount of heat generated?
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Dec
You are given a resistance coil and a battery. In which of the following cases is largest amount of heat generated? You are given a resistance coil and a battery. In which of the following cases is largest amount of heat generated? December 2, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - [...]
A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if
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Dec
A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if December 2, 2020 [...]
A heating coil transforms 100J of electrical energy into heat energy per second. The coil is cut into two halves and both the halves are joined together in parallel to the same source. Now the energy transformed per second will be
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Dec
A heating coil transforms 100J of electrical energy into heat energy per second. The coil is cut into two halves and both the halves are joined together in parallel to the same source. Now the energy transformed per second will be If the current in an electric bulb drops by 1 % the power decreases [...]
Two resistances , connected in parallel across a source of negligible internal resistance, consumes four times the power that they would consume when connected in series across the same source. If one of the resistances is 10Ω the other is
02
Dec
Two resistances , connected in parallel across a source of negligible internal resistance, consumes four times the power that they would consume when connected in series across the same source. If one of the resistances is 10Ω the other is connected in parallel across a source of negligible internal resistance consumes four times the power [...]
When a battery sends current through a resistance R1 for time t, the heat produced in the resistor is Q. When the same battery sends current through another resistance R2 for time t, the heat produced in R2 is again Q. The internal resistance of battery is
02
Dec
When a battery sends current through a resistance R1 for time t, the heat produced in the resistor is Q. When the same battery sends current through another resistance R2 for time t, the heat produced in R2 is again Q. The internal resistance of battery is the heat produced in R2 is again Q. [...]