Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A cell of emf 3.4V and internal resistance 3Ω is connected to an ammeter having resistance 2Ω and to an external resistance of 100Ω. When a voltmeter is connected across the 100Ω resistance, the ammeter reading is 0.04A. Find the voltage reading by the voltmeter and its resistance. Had the voltmeter been an ideal one what would have been its reading?
13
Nov
A cell of emf 3.4V and internal resistance 3Ω is connected to an ammeter having resistance 2Ω and to an external resistance of 100Ω. When a voltmeter is connected across the 100Ω resistance, the ammeter reading is 0.04A. Find the voltage reading by the voltmeter and its resistance. Had the voltmeter been an ideal one [...]
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A cell of emf 3.4V and internal resistance 3Ω is connected to an ammeter having resistance 2Ω and to an external resistance of 100Ω. When a voltmeter is connected across the 100Ω resistance ,
the ammeter reading is 0.04A. Find the voltage reading by the voltmeter and its resistance. Had the voltmeter been an ideal one what would have been its reading? ,
A voltmeter connected in series with a resistance R1 to a circuit indicates a voltage V1 = 198 V. When a series resistor R2 = 2 R1 is used, the voltmeter indicates as voltage V2 = 180 V. If the resistance of the voltmeter is RV = 900 Ω, then the applied voltage across A and B is
13
Nov
A voltmeter connected in series with a resistance R1 to a circuit indicates a voltage V1 = 198 V. When a series resistor R2 = 2 R1 is used, the voltmeter indicates as voltage V2 = 180 V. If the resistance of the voltmeter is RV = 900 Ω, then the applied voltage across A [...]
Hydrogen is not obtained when zinc reacts with (a) Cold water (b) Hot NaOH solution (c) Conc. sulphuric acid (d) Dilute HCl
13
Nov
Hydrogen is not obtained when zinc reacts with (a) Cold water (b) Hot NaOH solution (c) Conc. sulphuric acid (d) Dilute HCl Syngas is a mixture of (a) CO2 + H2 (b) CO + H2 (c) CO + CO2 (d) CO + N2 (e) CO + O2 November 13, 2020 Category: Uncategorised (JEE Advanced Physics [...]
Which is distilled first (a) Liquid CO2 (b) Liquid N2 (c) Liquid O2 (d) Liquid H2
13
Nov
Which is distilled first (a) Liquid CO2 (b) Liquid N2 (c) Liquid O2 (d) Liquid H2 Which is distilled first (a) Liquid CO2 (b) Liquid N2 (c) Liquid O2 (d) Liquid H2 November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Two cells A and B of emf 1.3 V and 1.5 V respectively are arranged as shown in figure. The voltmeter reds 1.45V. The voltmeter is assumed to be ideal. Find the ratio of the internal resistance of the batteries R1 /R2 = ?
13
Nov
Two cells A and B of emf 1.3 V and 1.5 V respectively are arranged as shown in figure. The voltmeter reds 1.45V. The voltmeter is assumed to be ideal. Find the ratio of the internal resistance of the batteries R1 /R2 = ? In the circuit shown below the key is pressed at time [...]
Which of the following will not displace hydrogen (a) Ba (b) Pb (c) Hg (d) Sn
13
Nov
Which of the following will not displace hydrogen (a) Ba (b) Pb (c) Hg (d) Sn Which of the following will not displace hydrogen (a) Ba (b) Pb (c) Hg (d) Sn November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Hydrogen burns in air with a (a) Light bluish flame (b) Yellow flame (c) Green flame (d) None of these
13
Nov
Hydrogen burns in air with a (a) Light bluish flame (b) Yellow flame (c) Green flame (d) None of these Hydrogen burns in air with a (a) Light bluish flame (b) Yellow flame (c) Green flame (d) None of these November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Ortho and para hydrogen differ in (a) Proton spin (b) Electron spin (c) Nuclear charge (d) Nuclear reaction
13
Nov
Ortho and para hydrogen differ in (a) Proton spin (b) Electron spin (c) Nuclear charge (d) Nuclear reaction Ortho and para hydrogen differ in (a) Proton spin (b) Electron spin (c) Nuclear charge (d) Nuclear reaction November 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A galvanometer with a coil of resistance 12.0 ohm shows full – scale deflection for a current of 2.5 mA. How will you convert the meter into
13
Nov
A galvanometer with a coil of resistance 12.0 ohm shows full – scale deflection for a current of 2.5 mA. How will you convert the meter into A galvanometer with a coil of resistance 12.0 ohm shows full - scale deflection for a current of 2.5 mA. How will you convert the meter into November [...]
It is required to measure the resistance of a circuit operating at 120 V. There is only one galvanometer of current sensitivity 10^−6 A per division. How should the galvanometer be connected in the circuit to operate an ohmmeter? Why minimum resistance can be measured with such a galvanometer if its full-scale has 40 divisions?
13
Nov
It is required to measure the resistance of a circuit operating at 120 V. There is only one galvanometer of current sensitivity 10^−6 A per division. How should the galvanometer be connected in the circuit to operate an ohmmeter? Why minimum resistance can be measured with such a galvanometer if its full-scale has 40 divisions? [...]