UP SUPER TET | Exam Special - L5 | Current Affairs & Static GK | Expected Paper 05 | Gaurav Sir

The National Insignia (राष्ट्रीय प्रतीक चिन्ह)|Current Affairs & Static GK - Practice Set (Questions-प्रश्न)|OMR

When an inductor L and a resistor R are connected across 12 V, 50 Hz a.c. supply, a current of 0.5 A flows through the distance the circuit. What is the value of R if current differs in phase from applied voltage by pi//3 radian?

An inductor of inductance L Henry is connected to an AC supply of 12 V . The frequency of source is 50 Hz and current in the inductor is 0.5 A. When the same inductor is connected across a direct current supply of 12 V it draws the current of 1.5 A . Find the value of L .

A cylindrical wire of radius 0.5 mm and conductivity 5 xx 10^7 S/m is subjected to an electric field of 10 mV/m. The expected value of current in the wire will be x^3pi mA. The value of x is ____ .

A conducting stick of length 2L and mass m is moving down a smooth inclined plane of inclination 60^(@) with constant speed 5m/s. A current 2A is flowing in the conductor perpendicular to the paper inwards. A vertically upward magnetic field B exists in space there. The magnitude of magnetic field B is

A solenoid made up of copper wire consists of 400 turns and carries a current of 5 A. If length of the solenoid is 0.5 m and has a radius of 2 cm, find the magnitude of the magnetic field inside the solenoid.

The armature of a shunt wound motor can with stand current up to 8 A before it overheats and it damaged. If the armature resistance is 0.5 Omega ,minimum back emf that must be motor is connected to a 120 V line is

A lineman of mass 60 kg is holding a vertical pole . The coefficient of the static friction between his hands and the pole is 0.5 . If he is able to climb up the pole , what is the minimum force with which he should press the pole with his hands ? ( g = 10 m//s^(2) )

A P-N junction diode can withstand currents up to 10 mA . Under forward bias, The diode has a potential drop of 0.5 V across it which is assumed to be independent of current. The maximum voltage of the battery used to forward bias the diode when a resistance of 200 Omega is connected in series with it is