Chapter 22 – Current Electricity
Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 22 - Current Electricity
See the electrical circuit shown in the figure. Which of the following equations is a correct equation for it?
22
Aug
See the electrical circuit shown in the figure. Which of the following equations is a correct equation for it? See the electrical circuit shown in the figure. Which of the following equations is a correct equation for it? August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - [...]
In the circuit shown the cells A and B have negligible resistances. For VA = 12 V, R1 = 500 Ω and R = 100 Ω the galvanometer (G) shows no deflection. The value of VB is :-
22
Aug
In the circuit shown the cells A and B have negligible resistances. For VA = 12 V, R1 = 500 Ω and R = 100 Ω the galvanometer (G) shows no deflection. The value of VB is :- In the circuit shown the cells A and B have negligible resistances. For VA = 12 V [...]
The potential difference (VA-VB) between the points A and B in the given figure is
22
Aug
The potential difference (VA-VB) between the points A and B in the given figure is The potential difference (VA-VB) between the points A and B in the given figure is August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics [...]
The resistance of an ammeter is 13 Ω and its scale is graduated fro a current upto 100 A. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 A by this meter. The value of shunt resistance is
22
Aug
The resistance of an ammeter is 13 Ω and its scale is graduated fro a current upto 100 A. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 A by this meter. The value of shunt resistance is A galvanometer has a coil of resistance 100 [...]
A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively
22
Aug
A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 Years Solved [...]
Consider the following two statements (A)Kirchhoff’s junction law follows from conservation of charge. (B)Kirchhoff’s loop law follows from conservation of energy Which of the following is correct ?
22
Aug
Consider the following two statements (A)Kirchhoff’s junction law follows from conservation of charge. (B)Kirchhoff’s loop law follows from conservation of energy Which of the following is correct ? Consider the following two statements (A)Kirchhoff's junction law follows from conservation of charge. (B)Kirchhoff's loop law follows from conservation of energy Which of the following is correct [...]
A galvanometer has a coil of resistance 100 Ohms and gives a full-scale deflection for 30 mA current. If it is to work as a voltmeter of 30 V range, the resistance required to be added will be
22
Aug
A galvanometer has a coil of resistance 100 Ohms and gives a full-scale deflection for 30 mA current. If it is to work as a voltmeter of 30 V range, the resistance required to be added will be A galvanometer has a coil of resistance 100 Ohms and gives a full-scale deflection for 30 mA [...]
A millivoltmeter of 25 mV range is to be converted into an ammeter of 25 A range. The value (in ohm) of necessary shunt will be
22
Aug
A millivoltmeter of 25 mV range is to be converted into an ammeter of 25 A range. The value (in ohm) of necessary shunt will be A millivoltmeter of 25 mV range is to be converted into an ammeter of 25 A range. The value (in ohm) of necessary shunt will be August 22, 2020 [...]
A wire of resistance 4 ohm is stretched to twice its original length . The resistance of stretched wire would be
22
Aug
A wire of resistance 4 ohm is stretched to twice its original length . The resistance of stretched wire would be A wire of resistance 4 ohm is stretched to twice its original length . The resistance of stretched wire would be August 22, 2020 Category: Chapter 22 - Current Electricity , NEET Last 32 [...]
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 [...]