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A 200W and a 100W , both meant for operation at 220V are connected to a 220V supply. The total power consumed by them will be A 200W and a 100W both meant for operation at 220V are connected to a 220V supply. The total power consumed by them will be December 2, 2020 Category: [...]

Two electric bulbs, one of 200V, 40W, and the other 220V, 100W are connected in a house wiring circuit 100W are connected in a house wiring circuit 40W and the other 220V one of 200V Two electric bulbs December 2, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part [...]

A 100W bulb and a 25W bulb are designed for the same voltage. They have filaments of the same length and material. The ratio of the diameter of 100W bulb to that of the 25W bulb is A 100W bulb and a 25W bulb are designed for the same voltage. They have filaments of the [...]

The polarizing power of the following anions , N^3- , O^2- and F^- , follow the order follow the order n3 O^2- and F^- The polarizing power of the following anions December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In which of the following molecules is the covalent bond most polar (a) HI (b) HBr (c) HCL (d) H2 In which of the following molecules is the covalent bond most polar (a) HI (b) HBr (c) HCL (d) H2 December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The electronegativity of C , H , O , N and S are 2.5 , 2.1 , 3.1 , 3.5 , 3.0 and 2.5 respectively . which of the following bond is most polar 2.1 3.0 and 2.5 respectively . which of the following bond is most polar 3.1 3.5 H N and S are [...]

Two electric bulbs rated at 25 W, 220 V and 100 W, 220 V are connected in series across a 220 V voltage source. The 25 W and 100 W bulbs now draw P1 and P2 powers respectively 220 V and 100 W 220 V are connected in series across a 220 V voltage source. [...]

An electric bulb rated for 500W at 100V is used in circuit having 200V supply. What resistance R that must be put in series with the bulb, so that the bulb delivers 500 W. An electric bulb rated for 500W at 100V is used in circuit having 200V supply. What resistance R that must be [...]

Two identical batteries each of emf E=2 volt and internal resistance r=1.0 ohm are available to produce heat in an external resistance R = 0.5 ohm by passing a current through it. The maximum Joulean power that can be developed across R using these batteries is The power dissipated 6 ohm resistor is December 2, [...]

Three equal resistance, each of R ohm, are connected as shown in the figure. A battery of 2V and of internal resistance 0.1 ohm is connected across the circuit. The value of R for which the heat generated in the circuit maximum will be are connected as shown in the figure. A battery of 2V [...]