Volume 2
A capacitor of capacitance C is charged to a potential difference V from a cell and then disconnected from it. A charge +Q is now given to its positive plate. The potential difference across the capacitor is now
03
Dec
A capacitor of capacitance C is charged to a potential difference V from a cell and then disconnected from it. A charge +Q is now given to its positive plate. The potential difference across the capacitor is now In the steady state in the circuit shown : December 3, 2020 Category: Arihant Physics by D.C [...]
A parallel plate capacitor of capacitance C consists of two identical plates A and B. A charge q is given to plate A and charge −2q is given to plate B. The space between plates is vacuum. The separation between plates is d. The electric intensity at a point situated between plates is?
03
Dec
A parallel plate capacitor of capacitance C consists of two identical plates A and B. A charge q is given to plate A and charge −2q is given to plate B. The space between plates is vacuum. The separation between plates is d. The electric intensity at a point situated between plates is? In the [...]
A 20Ω resistance takes 5 minutes to boil a given amount of water. How much resistance will be required to boil the same amount of water using the same source in 1 minute?
03
Dec
A 20Ω resistance takes 5 minutes to boil a given amount of water. How much resistance will be required to boil the same amount of water using the same source in 1 minute? A 20Ω resistance takes 5 minutes to boil a given amount of water. How much resistance will be required to boil the [...]
When one ampere current flows for one minute through a silver voltmeter, it deposites 0.067g of silver on the cathode, then how much charge will flow to deposite 108g of silver?
03
Dec
When one ampere current flows for one minute through a silver voltmeter, it deposites 0.067g of silver on the cathode, then how much charge will flow to deposite 108g of silver? it deposites 0.067g of silver on the cathode then how much charge will flow to deposite 108g of silver? When one ampere current flows [...]
An electric kettle boils some water in 16 minutes. Due to some defect, it becomes necessary to remove 10% turns of heating coil of the kettle. Now, how much time will it take to boil the same mass of water.
03
Dec
An electric kettle boils some water in 16 minutes. Due to some defect, it becomes necessary to remove 10% turns of heating coil of the kettle. Now, how much time will it take to boil the same mass of water. An electric kettle boils some water in 16 minutes. Due to some defect how much [...]
A fuse wire of circular cross-section and having diameter of 0.4 mm, allows 3A of current to pass through it. But if another fuse wire of same material and circular cross-section and having diameter of 0.6 mm is taken, then the amount of current passed through the fuse is?
03
Dec
A fuse wire of circular cross-section and having diameter of 0.4 mm, allows 3A of current to pass through it. But if another fuse wire of same material and circular cross-section and having diameter of 0.6 mm is taken, then the amount of current passed through the fuse is? A fuse wire of circular cross-section [...]
The heat produced by the heather of 100 W in 7 min is :
03
Dec
The heat produced by the heather of 100 W in 7 min is : The heat produced by the heather of 100 W in 7 min is : December 3, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
What must be the efficiency of an electric kettle marked 500W, 230V, if the was found to bring 1 kg of water at 15^oC to boiling point in 15 minutes? (given specific heat capacity of water =4200 J/kg^oC)
03
Dec
What must be the efficiency of an electric kettle marked 500W, 230V, if the was found to bring 1 kg of water at 15^oC to boiling point in 15 minutes? (given specific heat capacity of water =4200 J/kg^oC) 230V if the was found to bring 1 kg of water at 15^oC to boiling point in [...]
If two identical heaters each rated as (1000W – 220V) are connected in parallel to 220V, then the total power consumed is?
03
Dec
If two identical heaters each rated as (1000W – 220V) are connected in parallel to 220V, then the total power consumed is? If two identical heaters each rated as (1000W - 220V) are connected in parallel to 220V then the total power consumed is? December 3, 2020 Category: Arihant Physics by D.C Pandey , Chapter [...]
The power consumed by the combination, when three electric lamps of 40W, 60W and 100W are connected in parallel, is?
03
Dec
The power consumed by the combination, when three electric lamps of 40W, 60W and 100W are connected in parallel, is? 60W and 100W are connected in parallel is The power consumed by the combination when three electric lamps of 40W December 3, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity [...]