Physics-
General
Easy
Question
In a galvanometer, the deflection becomes one half when the galvanometer is shunted by a 20 
resistor. The galvanometer resistance is
- 5
- 10
- 40
- 20
The correct answer is: 20
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What amount of heat will be generated in a coil of resistance R due to a charge q passing through it if the current in the coil decreases to zero uniformly during a time interval 
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The circuit diagram shown consists of a large number of element (each element has two resistors R1 and R2). The resistance of the resistors in each subsequent element differs by a factor of K = 1/2 from the resistance of the resistors in the previous elements. The equivalent reistance between A and B shown in figure is :
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Consider an infinte ladder network shown in figure. A voltage V is applied between the points A and B. This applied value of voltage is halved after each section.
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