When the position of cell and galvanometer in a Wheatstone bridge is interchanged, its balanced condition
Ten million electrons pass from point P to point Q in one micro second. The current and its direction is
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A current in a wire is given by the equation, I =2t^{2} − 3t + 1, the charge through cross section of wire in time interval t = 3s to t = 5s is
An electric bulb is rated 220 V and 100 W. Power consumed by it operated on 110 V is
Meter Bridge or Slide Wire Bridge is a practical form of
In a potentiometer a cell of e.m.f 2V gives a balance point at 30cm. If the cell is replaced by another cell and the balance point shifts to 60cm.What is the e.m.f of the other cell?
1 ampere current is equivalent to
In an atom electrons revolves around the nucleus along a path of radius 0.72Å making 9.4×10^{18} revolution per second. The equivalent current is (e = 1.6×10^{−19}C)
Sensitivity of potentiometer can be increased by
The current in a wire varies with time according to the equation I = 4 + 2t, where I is in ampere and t is in second. The quantity of charge which has to be passed through a crosssection of the wire during the time t = 2s to t = 6s is?
12 docs366 tests

Test: Ohm’s law & Limitations of Ohm’s Law (December 2) Test  10 ques 
Test: Factors Affecting Resistivity (December 3) Test  10 ques 
Test: Electrical Energy and Power (December 4) Test  10 ques 
Test: Internal Resistance & Cells in Series and in Parallel (December 5) Test  10 ques 
Test: Kirchhoff’s Rules & Wheatstone Bridge (December 6) Test  10 ques 
12 docs366 tests

Test: Ohm’s law & Limitations of Ohm’s Law (December 2) Test  10 ques 
Test: Factors Affecting Resistivity (December 3) Test  10 ques 
Test: Electrical Energy and Power (December 4) Test  10 ques 
Test: Internal Resistance & Cells in Series and in Parallel (December 5) Test  10 ques 
Test: Kirchhoff’s Rules & Wheatstone Bridge (December 6) Test  10 ques 