SSC JE Electrical Engineering 23rd Jan 2018 Shift-1

How muchtime (in sec) will be taken by 40 C of charge to pass through a pointin a circuit, if a current of 8 A flows through it?

Four capacitors of 15 mF are connectedin parallel. What is the equivalent capacitance (in mF) of the combination?

At 20 degree Celsius, aluminium wire has a resistance of 30 ohms. The temperature coefficient of resistance is 0.00305 per degree Celsius. Whatis the approximate resistance of the wire (in ohms) at 30 degree Celsius?

On which supply does the appliances based on heating effect of electric current work?

Find the resistivity of a material (in Ohms-cm) of wire whoseresistance is 5 ohms. (Assumelength of the wire is 15 m, diameterof wire is 0.15 cm)

The two metal plates having an area of 50 sq. m are separated by a dielectric material having thickness of 4 mm and relative permittivity of 9. Calculate the capacitance (in micro-Farad) across the metal plates.

A chokeof 20 H carries a current of 600 mA. Calculate the energy stored (in J) in form of magnetic field by the choke.

Three electric lamps of 70 W each are connectedin parallel across AC mains. Whatis the total power consumed (in W) by the parallel combination?

The dimensions of a cuboidal metal strip are a=5cm, b=15cm and c=10cm What is the ratio of resistances $$R_{1}:R_{2}:R_{3}$$ between the respective pairs of opposite faces?

Calculate the equivalent capacitance (in $$\mu F$$) between point A and B.