NEET Last 32 Years Solved 1988 – 2019 Physics and Chemistry Video Solutions

Two bulbs 25 W, 220 V and 100 W, 220 V are given. Which has higher resistance ? 220 V and 100 W 220 V are given. Which has higher resistance ? Two bulbs 25 W August 17, 2020 Category: Chapter 20 - Electric Field and Potential , NEET Last 32 Years Solved 1988 - [...]

A 5 degree rise in temperature is observed in a conductor by passing some current. When the current is doubled then the rise in temperature will be A 5 degree rise in temperature is observed in a conductor by passing some current. When the current is doubled then the rise in temperature will be August [...]

A 100 W 200 V bulb is connected to a 160 V power supply. The power consumption would be A 100 W 200 V bulb is connected to a 160 V power supply. The power consumption would be August 17, 2020 Category: Chapter 20 - Electric Field and Potential , NEET Last 32 Years Solved [...]

A heating coil is labelled 100 W, 220 V, the coil is cut in half and two pieces are joined in parallel to the same source. the energy now liberated per second is 220 V A heating coil is labelled 100 W the coil is cut in half and two pieces are joined in parallel [...]

A battery of emf 10 V and internal resistance of 0.5 ohm is connected across a variable resistance R. The value of R for maximum power transfer is given by A battery of emf 10 V and internal resistance of 0.5 ohm is connected across a variable resistance R. The value of R for maximum [...]

Faraday’s laws are consequence of conservation of Faraday's laws are consequence of conservation of August 17, 2020 Category: Chapter 20 - Electric Field and Potential , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,

A current of 2A passing through conductor produces 80 J of heat in 10 seconds. The resistance of the conductor is – A current of 2A passing through conductor produces 80 J of heat in 10 seconds. The resistance of the conductor is - August 17, 2020 Category: Chapter 20 - Electric Field and Potential [...]

40 electric bulb are connected in series across a 220V supply. After one bulb is fused the remaining 39 are connected again in series across the same supply. The illumination will be 40 electric bulb are connected in series across a 220V supply. After one bulb is fused the remaining 39 are connected again in [...]

Two metal spheres, one of radius R and the other of radius 2R, both have same surface charge density σ. If they are brought in contact and separated, then the new surface charge densities on each of the sphere are respectively both have same surface charge density σ. If they are brought in contact and [...]

Suppose the charge of a proton and an electron differ slightly. One of them is -e, the other is (e+Δe). If the net of electrostatic force and gravitational force between two hydrogen atoms placed at a distance d (much greater than atomic size) apart is zero, then Δe is of the order of [Given mass [...]