Two Zener diodes (A and B) having breakdown voltages of 6 V and 4 V respectively, are connected as shown in the circuit below. The output voltage... View Article
An infinitely long straight wire carrying current I, one side opened rectangular loop and a conductor C with a sliding connector are located in... View Article
The velocity (v) and time (t) graph of a body in a straight line motion is shown in the figure. The point S is at 4.333 seconds. The total... View Article
In the circuit, given in the figure currents in different branches and the value of one resistor are shown. Then potential at point B with... View Article
Two different wires having lengths L1 and L2, and respective temperature coefficient of linear expansion ɑ1 and ɑ2, are joined end-to-end. Then... View Article
A spaceship in space sweeps stationary interplanetary dust. As a result, its mass increases at a rate [dM (t)] / dt = bv2 (t), where v(t) is its... View Article
Ten charges are placed on the circumference of a circle of radius R with constant angular separation between successive charges. Alternate... View Article
In an experiment to verify Stokes law, a small spherical ball of radius r and density falls under gravity through a distance h in the air before... View Article
A ring is hung on a nail. It can oscillate, without slipping or sliding (i) in its plane with a time period T1 and, (ii) back and forth in a... View Article
A soft drink was bottled with a partial pressure of CO2 of 3 bar over the liquid at room temperature. The partial pressure of CO2 over the... View Article
a) in the stratosphere, it forms a protective shield against UV radiation.b) in the atmosphere, it is depleted by CFCs.c) in the stratosphere,... View Article
