Volume 2
The ratio of the lengths, densities, masses and resistivities of two wires A and B are 1:2,1:2,1:1,1:4 respectively. The ratio of their resistances are:
02
Dec
The ratio of the lengths, densities, masses and resistivities of two wires A and B are 1:2,1:2,1:1,1:4 respectively. The ratio of their resistances are: -12 1:4 respectively. The ratio of their resistances are: 11 densities masses and resistivities of two wires A and B are 1:2 The ratio of the lengths December 2, 2020 Category: [...]
A wire of resistance 4 Ω is stretched to twice its original length. What is the resistance of the wire now ?
02
Dec
A wire of resistance 4 Ω is stretched to twice its original length. What is the resistance of the wire now ? A wire of resistance 4 Ω is stretched to twice its original length. What is the resistance of the wire now ? December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter [...]
If R1 be the resistance of the shown conductor between faces ABCD and EFGH and R2 between faces BCGF and ADHE, R2/R1 will be?
02
Dec
If R1 be the resistance of the shown conductor between faces ABCD and EFGH and R2 between faces BCGF and ADHE, R2/R1 will be? If R1 be the resistance of the shown conductor between faces ABCD and EFGH and R2 between faces BCGF and ADHE R2/R1 will be? December 2, 2020 Category: Arihant Physics by [...]
A wire with a resistance 20Ω is drawn out so that its length become thrice its original length. The new resistance is :
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Dec
A wire with a resistance 20Ω is drawn out so that its length become thrice its original length. The new resistance is : A wire with a resistance 20Ω is drawn out so that its length become thrice its original length. The new resistance is : December 2, 2020 Category: Arihant Physics by D.C Pandey [...]
A nichrome wire 50 cm long and one square millimetre cross- section carries a current of 4 A when connected to a 2 V storage battery. The resistivity of nichrome is
02
Dec
A nichrome wire 50 cm long and one square millimetre cross- section carries a current of 4 A when connected to a 2 V storage battery. The resistivity of nichrome is A nichrome wire 50 cm long and one square millimetre cross- section carries a current of 4 A when connected to a 2 V [...]
Two square metal plates (A) and (B) are of the same thickness and material. The side of (B) is twice that of (A). These are connected as shown in series. If the resistances of (A) and (B) are denoted by (RA) and (RB), then (RA/RB ) is?
02
Dec
Two square metal plates (A) and (B) are of the same thickness and material. The side of (B) is twice that of (A). These are connected as shown in series. If the resistances of (A) and (B) are denoted by (RA) and (RB), then (RA/RB ) is? A solid cylinder whose radius is R rotates [...]
The V−i graph for a conductor at temperatures T1 and T2 are as shown in the figure. (T2−T1) is proportional to.
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Dec
The V−i graph for a conductor at temperatures T1 and T2 are as shown in the figure. (T2−T1) is proportional to. The V−i graph for a conductor at temperatures T1 and T2 are as shown in the figure. (T2−T1) is proportional to. December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - [...]
What is the drift velocity of electrons if the current flowing through a copper wire of 1 mm diameter is 1.1A? Assume that each atom of copper contributes one electron: (Given: density of Cu=9g/cm^3 and atomic weight of Cu=63)
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Dec
What is the drift velocity of electrons if the current flowing through a copper wire of 1 mm diameter is 1.1A? Assume that each atom of copper contributes one electron: (Given: density of Cu=9g/cm^3 and atomic weight of Cu=63) A solid cylinder whose radius is R rotates with a constant angular velocity ω. The potential [...]
Mark correct option or options: A. In the absence of an electric field, electrons move in straight lines between collisions
02
Dec
Mark correct option or options: A. In the absence of an electric field, electrons move in straight lines between collisions electrons move in straight lines between collisions Mark correct option or options: A. In the absence of an electric field December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity [...]
A solid cylinder whose radius is R, rotates with a constant angular velocity ω. The potential difference between surface of cylinder and the axis is?
02
Dec
A solid cylinder whose radius is R, rotates with a constant angular velocity ω. The potential difference between surface of cylinder and the axis is? A solid cylinder whose radius is R rotates with a constant angular velocity ω. The potential difference between surface of cylinder and the axis is? December 2, 2020 Category: Arihant [...]