Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The charge on the capacitor as in figure is (1) 2 muC (2) 2/3 muC (3) 4/3 muC (4) zero
11
Nov
The charge on the capacitor as in figure is (1) 2 muC (2) 2/3 muC (3) 4/3 muC (4) zero The charge on the capacitor as in figure is (1) 2 muC (2) 2/3 muC (3) 4/3 muC (4) zero November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A number of resistors are conncected as shown in the figure. The equivalent resistance between A and B is
11
Nov
A number of resistors are conncected as shown in the figure. The equivalent resistance between A and B is A number of resistors are conncected as shown in the figure. The equivalent resistance between A and B is November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Purpose of smelting of an ore is (a) To oxidise it (b) To reduce it (c) To remove vapourisable impurities (d) To obtain an alloy
11
Nov
Purpose of smelting of an ore is (a) To oxidise it (b) To reduce it (c) To remove vapourisable impurities (d) To obtain an alloy Purpose of smelting of an ore is (a) To oxidise it (b) To reduce it (c) To remove vapourisable impurities (d) To obtain an alloy November 11, 2020 Category: Uncategorised [...]
A substance which reacts with gangue to form fusible material is called (a) Flux (b) Catalyst (c) Ore (d) Slag
11
Nov
A substance which reacts with gangue to form fusible material is called (a) Flux (b) Catalyst (c) Ore (d) Slag A substance which reacts with gangue to form fusible material is called (a) Flux (b) Catalyst (c) Ore (d) Slag November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
When lime stone is heated strongly, it gives off CO2. In metallurgy this process is known as (a) Calcination (b) Roasting (c) Smelting (d) Ore dressing
11
Nov
When lime stone is heated strongly, it gives off CO2. In metallurgy this process is known as (a) Calcination (b) Roasting (c) Smelting (d) Ore dressing it gives off CO2. In metallurgy this process is known as (a) Calcination (b) Roasting (c) Smelting (d) Ore dressing When lime stone is heated strongly November 11, 2020 [...]
Roasting is generally done in case of the following (a) Oxides ores (b) Silicate ores (c) Sulphide ores (d) Carbonate ores
11
Nov
Roasting is generally done in case of the following (a) Oxides ores (b) Silicate ores (c) Sulphide ores (d) Carbonate ores Roasting is generally done in case of the following (a) Oxides ores (b) Silicate ores (c) Sulphide ores (d) Carbonate ores November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
Flux is used to remove (a) silica (b) Metal oxide (c) All impurities from ores (d) Silica and undesirable metal oxide
11
Nov
Flux is used to remove (a) silica (b) Metal oxide (c) All impurities from ores (d) Silica and undesirable metal oxide Flux is used to remove (a) silica (b) Metal oxide (c) All impurities from ores (d) Silica and undesirable metal oxide November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
The circuit shown in the figure consists of a battery of emf ε=10V , a capacitor of capacitance C=1.0μF and three resistors of value R1=2Ω,R2=2Ω and R3=1Ω, Initially the capacitor is completely uncharged and the switch S is open. The switch S is closed at t=0. Then
11
Nov
The circuit shown in the figure consists of a battery of emf ε=10V , a capacitor of capacitance C=1.0μF and three resistors of value R1=2Ω,R2=2Ω and R3=1Ω, Initially the capacitor is completely uncharged and the switch S is open. The switch S is closed at t=0. Then a capacitor of capacitance C=1.0μF and three resistors [...]
To get maximum current through a resistance of 2.5Ω, one can use m rows of cells, each row having n cells. The internal resistance of each cell is 0.5Ω. What are the value of n and m, if the total number of cells is 45?
11
Nov
To get maximum current through a resistance of 2.5Ω, one can use m rows of cells, each row having n cells. The internal resistance of each cell is 0.5Ω. What are the value of n and m, if the total number of cells is 45? each row having n cells. The internal resistance of each [...]
A cell of emf e and internal resistance r is charged by a current i, then
11
Nov
A cell of emf e and internal resistance r is charged by a current i, then A cell of emf e and internal resistance r is charged by a current i then November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,