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In a ammeter 0.2% of main current passes through the galvanometer. If resistance of galvanometer is G, the resistance of ammeter will be
22
Aug
In a ammeter 0.2% of main current passes through the galvanometer. If resistance of galvanometer is G, the resistance of ammeter will be In a ammeter 0.2% of main current passes through the galvanometer. If resistance of galvanometer is G the resistance of ammeter will be August 22, 2020 Category: Chapter 22 - Current Electricity [...]
A circuit contains an ammeter ,a battery of 30 V and a resistance of 40.8 ohm all connected series. If the ammeter has a coil of resistance 480 ohm and a shunt of 20 ohm, the reading in the ammeter will be
22
Aug
A circuit contains an ammeter ,a battery of 30 V and a resistance of 40.8 ohm all connected series. If the ammeter has a coil of resistance 480 ohm and a shunt of 20 ohm, the reading in the ammeter will be a battery of 30 V and a resistance of 40.8 ohm all connected [...]
A block B is floating in the river. The position of the block is as shown in figure at time t=0. Flow speed of river is 2m/s. A stone is thrown from point O at time t=0 with a velocity V→=(v1jˆ+v2jˆ+20)kˆm/s. (a) Find v1, v2 such that the stone hits the block. (b) If the speed of throw is kept fixed, what is the maximum value of time t at which it is possible to throw the stone to bit the block.
22
Aug
A block B is floating in the river. The position of the block is as shown in figure at time t=0. Flow speed of river is 2m/s. A stone is thrown from point O at time t=0 with a velocity V→=(v1jˆ+v2jˆ+20)kˆm/s. (a) Find v1, v2 such that the stone hits the block. (b) If the [...]
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0) at t=0. The particle A move on a circle given by X2+Y2=3600 and with a speed 6πm/s ,
0). (b) Calculate average acceleration of particle A during the motion. ,
Two particles A and B are situated at point (60 ,
while B moves with a constant velocity. (a) Find the velocity of B so that the collision takes places between A and B at point (60 ,
Two metal wires of identical dimension are connected in series. If σ1 and σ2 are the conductivities of the metal wires respectively, the effective conductivity of the combination is
22
Aug
Two metal wires of identical dimension are connected in series. If σ1 and σ2 are the conductivities of the metal wires respectively, the effective conductivity of the combination is the effective conductivity of the combination is Two metal wires of identical dimension are connected in series. If σ1 and σ2 are the conductivities of the [...]
Across a metallic conductor of non-uniform cross-section a constant potential difference is applied. The quantity which remain constant along the conductor is
22
Aug
Across a metallic conductor of non-uniform cross-section a constant potential difference is applied. The quantity which remain constant along the conductor is Across a metallic conductor of non-uniform cross-section a constant potential difference is applied. The quantity which remain constant along the conductor is August 22, 2020 Category: Chapter 22 - Current Electricity , NEET [...]
If power dissipated in the 9Ω resistor in the circuit shown is 36 Watt, the potential difference across the 2Ω resistor is
22
Aug
If power dissipated in the 9Ω resistor in the circuit shown is 36 Watt, the potential difference across the 2Ω resistor is If power dissipated in the 9Ω resistor in the circuit shown is 36 Watt the potential difference across the 2Ω resistor is August 22, 2020 Category: Chapter 22 - Current Electricity , NEET [...]
A, B and C are voltmeters of resistance R, 1.5 R and 3R respectively as shown in the figure. When some potential difference is applied between X and Y, the voltmeter reading are VA, VB and VC respectively. Then
22
Aug
A, B and C are voltmeters of resistance R, 1.5 R and 3R respectively as shown in the figure. When some potential difference is applied between X and Y, the voltmeter reading are VA, VB and VC respectively. Then 1.5 R and 3R respectively as shown in the figure. When some potential difference is applied [...]
A carbon resistor of (47 ± 4.7)kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be
22
Aug
A carbon resistor of (47 ± 4.7)kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be A carbon resistor of (47 ± 4.7)kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be August 22, 2020 Category: Chapter [...]
A sailor in a boat, which is going due east with a speed of 8m/s observes that a submarine is heading towards north at a speed of 12m/s and sinking at a rate of 2m/s.The commander of submarine observes a helicopter ascending at a rate of 5m/s and heading towards west with 4m/s.Find the speed of the helicopter with respect to boat.
22
Aug
A sailor in a boat, which is going due east with a speed of 8m/s observes that a submarine is heading towards north at a speed of 12m/s and sinking at a rate of 2m/s.The commander of submarine observes a helicopter ascending at a rate of 5m/s and heading towards west with 4m/s.Find the speed [...]
The resistance of a wire is R ohm. If it is melted and stretched to n times its original length, its new resistance will be
22
Aug
The resistance of a wire is R ohm. If it is melted and stretched to n times its original length, its new resistance will be its new resistance will be The resistance of a wire is R ohm. If it is melted and stretched to n times its original length August 22, 2020 Category: Chapter [...]