Chapter 3 – Current Electricity

A voltmeter of resistance 200Ω is used to measure p.d across resistances 100Ω and 200Ω. A voltmeter of resistance 200Ω is used to measure p.d across resistances 100Ω and 200Ω. December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part 2 ,

Three ammeters A,B, and C of resistances RA, RB and RC respectively are joined as shown. When some potential difference is applied across the terminals T1 and T2 their readings are IA, IB and IC respectively Then, and C of resistances RA B IB and IC respectively Then RB and RC respectively are joined as [...]

An ammeter and a voltmeter are joined in sere is to a cell. Their readings are A and V respectively. a resistance is now joined in parallel with the voltmeter. Then An ammeter and a voltmeter are joined in sere is to a cell. Their readings are A and V respectively. a resistance is now [...]

A microammeter has as resistance of 100Ω and full scale range of 50μA. It can be used a voltmeter or as a higher range ammeter provided a resistance is added to it. Pick the correct range and resistance combinations The current i5 is December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 [...]

A galvanometer with 50 divisions on the scale has a resistance of 25Ω. A current of 2×10^−4 A gives a deflection of one scale division. The additional series required to convert it into a voltmeter reading up to 25V is. The current i5 is December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter [...]

A milliammeter of range of 10mA gives full-scale deflection for a current of 100mA, when a shunt of 0.1Ω is connected in parallel to it. The coil of the milliammeter has a resistance of. A milliammeter of range of 10mA gives full-scale deflection for a current of 100mA when a shunt of 0.1Ω is connected [...]

A battery is charged at a potential for 15 V for 8 h when the current following is 10A. The battery on discharge supplies a current of 5A for 15h . The mean terminal voltage during discharge is 14V. The watt-hour efficiency of the battery is The current i5 is December 1, 2020 Category: Cengage [...]

Find out the value of current through 2Ω resistance for the given circuit. Find out the value of current through 2Ω resistance for the given circuit. December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part 2 ,

Two resistance `R_(1)` and `R_(2)` are joined as shown in figure to two batteries of emf `E_(1)` and `E_(2)`. If `E_(2)` is short circuited, what is the current through `R_(1)` ? Two resistance `R_(1)` and `R_(2)` are joined as shown in figure to two batteries of emf `E_(1)` and `E_(2)`. If `E_(2)` is short circuited [...]

See the electrical circuit shown in this figure. Which of the following equations is a correct equation for it ? See the electrical circuit shown in this figure. Which of the following equations is a correct equation for it ? December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity [...]