Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
An electric bulb rated 220 V and 60 W is connected in series with another electric bulb rated 220Vand40W. The combination is connected across a source of emf 220 V. Which bulb will glow more?
15
Nov
An electric bulb rated 220 V and 60 W is connected in series with another electric bulb rated 220Vand40W. The combination is connected across a source of emf 220 V. Which bulb will glow more? An electric bulb rated 220 V and 60 W is connected in series with another electric bulb rated 220Vand40W. The [...]
In a potentiometer experiment it is found that no current passes through the galvanometer when the terminals of the cell are connected across 0.52m of the potentiometer wire. If the cell is shunted by a resistance of 5Ω balance is obtained when the cell connected across 0.4 m of the wire. Find the internal resistance of the cell.
15
Nov
In a potentiometer experiment it is found that no current passes through the galvanometer when the terminals of the cell are connected across 0.52m of the potentiometer wire. If the cell is shunted by a resistance of 5Ω balance is obtained when the cell connected across 0.4 m of the wire. Find the internal resistance [...]
The compound exhibiting maximum value of equivalent conduction in a fused state is (a) SrCl2 (b) CaCl2 (c) MgCl2 (d) BeCl2
15
Nov
The compound exhibiting maximum value of equivalent conduction in a fused state is (a) SrCl2 (b) CaCl2 (c) MgCl2 (d) BeCl2 The compound exhibiting maximum value of equivalent conduction in a fused state is (a) SrCl2 (b) CaCl2 (c) MgCl2 (d) BeCl2 November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
A heater joined in series with a 50W bulb is connected to the mains . If the 50W bulb is replaced by a 100W bulb , then will the heater now give more heat , less heat, or same heat ? Why ?
15
Nov
A heater joined in series with a 50W bulb is connected to the mains . If the 50W bulb is replaced by a 100W bulb , then will the heater now give more heat , less heat, or same heat ? Why ? A heater joined in series with a 50W bulb is connected to [...]
A moving coil galvanometer has 50 turns and each turn has an area 210 . The magnetic field produced by the magnet inside the galvanometer is 0.02 . The torsional constant of the suspension wire is 10 . When a current flows through the galvanometer, a full scale deflection occurs if the coil rotates by 0.2 . The resistance of the coil of the galvanometer is 50 . This galvanometer is to be converted into an ammeter capable of measuring current in the range 01.0 . For this purpose, a shunt resistance is to be added in parallel to the galvanometer. The value of this shunt resistance, in , is __________.
15
Nov
A moving coil galvanometer has 50 turns and each turn has an area 210 . The magnetic field produced by the magnet inside the galvanometer is 0.02 . The torsional constant of the suspension wire is 10 . When a current flows through the galvanometer, a full scale deflection occurs if the coil rotates by [...]
A galvanometer gives full scale deflection with 0.006 A current. By connecting it to a 4990 Ω resistance, it can be converted into a voltmeter of range 0.30 V. If connected to a 2n/249Ω resistance, it becomes an ammeter of range 0−1.5 A. the value of n is
15
Nov
A galvanometer gives full scale deflection with 0.006 A current. By connecting it to a 4990 Ω resistance, it can be converted into a voltmeter of range 0.30 V. If connected to a 2n/249Ω resistance, it becomes an ammeter of range 0−1.5 A. the value of n is A galvanometer gives full scale deflection with [...]
Consider two identical galvanometers and two identical resistors with resistance R. If the internal resistance of the galvanometers Rc<R/2, which of the following statement(s) about any one of the galvanometers is (are) true?
15
Nov
Consider two identical galvanometers and two identical resistors with resistance R. If the internal resistance of the galvanometers Rc<R/2, which of the following statement(s) about any one of the galvanometers is (are) true? Consider two identical galvanometers and two identical resistors with resistance R. If the internal resistance of the galvanometers Rc<R/2 which of the [...]
The highest lattice energy corresponds to (a) MgO (b) CaO (c) SrO (d) BaO
15
Nov
The highest lattice energy corresponds to (a) MgO (b) CaO (c) SrO (d) BaO The highest lattice energy corresponds to (a) MgO (b) CaO (c) SrO (d) BaO November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1kΩ. How much was the resistance on the left slot before interchanging the resistances?
15
Nov
On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1kΩ. How much was the resistance on the left slot before interchanging the resistances? On interchanging the resistances the balance point of a meter bridge shifts to the left by [...]
Which of the following oxides is most acidic in nature (a) BeO (b) MgO (c) CaO (d) BaO
15
Nov
Which of the following oxides is most acidic in nature (a) BeO (b) MgO (c) CaO (d) BaO Which of the following oxides is most acidic in nature (a) BeO (b) MgO (c) CaO (d) BaO November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,