Electric Circuits Answers

the radii of two charged spheres are 5cm and 10cm.each has a charge of 75 microcoulomb.they are connected by a conducting wire.calculate their common potential and amount of charge transferred.

You are having 6 resistors of 3ohm each using the combination of resistances how many different values are possible?

a uniform wire of resistance 15ohms is cut into three pieces in ratio 1:2:3 and the three pieces are connected to form a triangle. a cell of 10V potential with internal resistance 1ohm is connected across the highest of thre resistors. calculate the current through each part of the circuit.

what is the function of earth wire in elecrical instrument? explain. why it is necessary to earth the metallic electric appliances?

ABCD is a square of side 5m charges of +50C ,-50C,and +50Care placed at A,C and D respectively.Find the resultant electric field at B.

derive an expression for effective resistance when 3 resistors are connected in parallel

Establish the relation between one coulombic charge and one electronic charge

A wire of resistance 15.0 ohm is bent to form a regular hexagon ABCDEFA.Find the equivalent resistance of the loop between the points(a) A and B,(b) A and C,(c) A and D.

A 26 Ω loudspeaker and an 8 Ω loudspeaker are connected in parallel across the terminals of an amplifier. Assuming the speakers behave as resistors, calculate the equivalent resistance of the two speakers.