PATHFINDER-CURRENT ELECTRICITY-QUESTION BANK
- Two cells E1 and E2 have and emf of 5V and 9V and internal resistances...
03:49
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- A secondary cell after long use has an emf of 1.8 volt and a large int...
02:55
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- Draw V-I graph for ohmic and non-ohmic materials, Give one example for...
03:25
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- Obtain an expression showing the relation between the current-density ...
04:47
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- Explain the principle on which the working of a potentiometre is base...
06:05
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- The 'maximum' power rating of each resistor (2Omega) in the given circ...
07:08
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- A set of n identical resistors, each of resistance R ohm when connecte...
06:46
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- Two cells of e.m.f. E1 and E2 have internal resistance r1 and r2. Dedu...
06:22
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- State kirchoff's rules for current distribution in an electrical netwo...
03:15
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- A resistance R = 2Omega is connected to one of the gaps in a metre bri...
06:32
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- The lengths and radii of there wires of same metal are in the rations ...
09:42
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- State Kricholff's laws of an electrical network. Using Kirchoff's laws...
10:36
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- Draw circuit diagram to compare emf of two primary cells. Derive the f...
05:30
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- Which material is used for potentiometer wire and why?
01:47
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- How can sensitivity of a potentiometer be increased?
03:10
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- A and B are two points on a circular ring made of uniform wire of resi...
05:15
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- A uniform wire of resistance R is shaped into a regular n sided polygo...
05:03
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- A uniform wire of resistance R is shaped into a regular n sided polygo...
05:03
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- Resistivity of the material of a conductor of uniform area of cross-se...
03:35
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- Find the equivalent resistance of the network shown in the figure betw...
06:04
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