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Electric Circuits
why fan moves in a particular direction?
Electric Circuits
Power consumed by two 100 W bulbs in series supplied with 220 volts ac will be:
Electric Circuits
Two identical sphere having unequal and opposite charges are placed at a distance of 90 cm apart.After touching them mutually ,they are again separated by same distance now they repel each other with a force of 0.025N ,find the final charge on each of them?
Electric Circuits
10^6 charge is placed at point (1,2,4) the electric field at a point p(0,-4,3) is?
Electric Circuits
An electron accelarated through 30kV in a cathod ray osaloscope enters a sytem of deflecting plates.The deflecting feilds b/w the plate is 24kV/m the length of the deflecting plate 0.06m and the total deflection produced in the path of electron on the screen is 9mm.What is the distance of the screen from near end of the plate?
Electric Circuits
electric blub rated for 500 watts at 100V is used in the circuit having 200 V supply the resistance are that must be put in series with the bulb ts so that the bulb draws 500 watts is?
Electric Circuits
A rectangular block has a dimensions 1.2 cm x 1.2 cm x 15 cm (i) what is the resistance of opposite square ends? )ii) what is the resistance between two of the rectangular faces?
(the resistivity of iron at room temperature is 9.6x10-8 ohm-m)
(the resistivity of iron at room temperature is 9.6x10-8 ohm-m)
Electric Circuits
An object that has an electric charge has
an excess or deficiency of electrons
neither one
either one
an excess or deficiency of protons
an excess or deficiency of electrons
neither one
either one
an excess or deficiency of protons
Electric Circuits
Question: 38 of 72: A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine?
Electric Circuits
Resistors of 2,3 and 4 ohm are connected in series.If the current flowing through one of them is 1 A .what is the current through the other resisitors?
