A capacitor and a coil are connected in series across a 50 Hz variable ac supply of 234.6515.510 V. A voltage drop of vL(t) = 360 sin (ωt + 300

) V is measured across the

coil. The current flowing in the coil is 14.4 A at a power factor of 0.9063.

1.1.1 Determine the current drawn from the supply. (4)

1.1.2 Calculate the voltage drop across the capacitor. (2)

1.1.3 Calculate the capacitance of the capacitor.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.