Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Which of the following statements is false (a) CaOCl2 gives OH-, Cl- and OCl- in aqueous solution (b) Diamond and graphite are allotropes of carbon
15
Nov
Which of the following statements is false (a) CaOCl2 gives OH-, Cl- and OCl- in aqueous solution (b) Diamond and graphite are allotropes of carbon Cl- and OCl- in aqueous solution (b) Diamond and graphite are allotropes of carbon Which of the following statements is false (a) CaOCl2 gives OH- November 15, 2020 Category: Uncategorised [...]
A galvanometer, together with an unknown resistance in series, is connected across two identical batteries of each 1.5 V. When the batteries are connected in series, the galvanometer records a current of 1 A, and when the batteries are connected in parallel, the current is 0.6 A , then the internal resistance is 1/x ′ Ω. What is the value of x’?
15
Nov
A galvanometer, together with an unknown resistance in series, is connected across two identical batteries of each 1.5 V. When the batteries are connected in series, the galvanometer records a current of 1 A, and when the batteries are connected in parallel, the current is 0.6 A , then the internal resistance is 1/x ′ [...]
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A galvanometer ,
and when the batteries are connected in parallel ,
is connected across two identical batteries of each 1.5 V. When the batteries are connected in series ,
the current is 0.6 A ,
the galvanometer records a current of 1 A ,
then the internal resistance is 1/x ′ Ω. What is the value of x'? ,
together with an unknown resistance in series ,
A 5 m potentiometer wire having 3Ω resistance per meter is connected to a storage cell of steady emf 2V and internal resistance 1Ω. A primary cell is balanced against 3.5m of it. When a resistance of 32/nΩ is put in series with the storage cell, the null point shifts to the centre of the last wire, i.e., 4.5 m. What is ‘n’?
15
Nov
A 5 m potentiometer wire having 3Ω resistance per meter is connected to a storage cell of steady emf 2V and internal resistance 1Ω. A primary cell is balanced against 3.5m of it. When a resistance of 32/nΩ is put in series with the storage cell, the null point shifts to the centre of the [...]
The maximum current in a galvanometer can be 10 mA. Its resistance is 10 Ω. To convert it into an ammeter of 1 A, what resistance should be connected in parallel with galvanometer (in 10/ohm)?
15
Nov
The maximum current in a galvanometer can be 10 mA. Its resistance is 10 Ω. To convert it into an ammeter of 1 A, what resistance should be connected in parallel with galvanometer (in 10/ohm)? The maximum current in a galvanometer can be 10 mA. Its resistance is 10 Ω. To convert it into an [...]
Iron pipes lying under acidic soil are often attached to blocks of magnesium for protection from rusting. Magnesium offers protection to iron against corrosion because it
15
Nov
Iron pipes lying under acidic soil are often attached to blocks of magnesium for protection from rusting. Magnesium offers protection to iron against corrosion because it Iron pipes lying under acidic soil are often attached to blocks of magnesium for protection from rusting. Magnesium offers protection to iron against corrosion because it November 15, 2020 [...]
The ammeter shown in figure consists of 480 ohm coil connected in parallel to 20 ohm shunt. Find the reading of the ammeter ( in A ).
15
Nov
The ammeter shown in figure consists of 480 ohm coil connected in parallel to 20 ohm shunt. Find the reading of the ammeter ( in A ). The ammeter shown in figure consists of 480 ohm coil connected in parallel to 20 ohm shunt. Find the reading of the ammeter ( in A ). November [...]
In the Alkaline earth metals, the element forming predominantly covalent compound is (a) Be (b) Mg (c) Sr (d) Ca
15
Nov
In the Alkaline earth metals, the element forming predominantly covalent compound is (a) Be (b) Mg (c) Sr (d) Ca In the Alkaline earth metals the element forming predominantly covalent compound is (a) Be (b) Mg (c) Sr (d) Ca November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Plaster of Paris is (a) CaSO4.2H2O (b) CaSO4.3H2O (c) CaSO4.3H2O (d) CaSO4. 1/2 H2O
15
Nov
Plaster of Paris is (a) CaSO4.2H2O (b) CaSO4.3H2O (c) CaSO4.3H2O (d) CaSO4. 1/2 H2O Plaster of Paris is (a) CaSO4.2H2O (b) CaSO4.3H2O (c) CaSO4.3H2O (d) CaSO4. 1/2 H2O November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Find the reading of the ammeters A1 (in ampere ) connected as shown in the network.
15
Nov
Find the reading of the ammeters A1 (in ampere ) connected as shown in the network. Find the reading of the ammeters A1 (in ampere ) connected as shown in the network. November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Lithopone is (a) BaO + ZnSO4 (b) ZnO + BaSO4 (c) BaS + ZnSO4 (d) ZnS + BaSO4
15
Nov
Lithopone is (a) BaO + ZnSO4 (b) ZnO + BaSO4 (c) BaS + ZnSO4 (d) ZnS + BaSO4 Lithopone is (a) BaO + ZnSO4 (b) ZnO + BaSO4 (c) BaS + ZnSO4 (d) ZnS + BaSO4 November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,