Physics No current will flow between two charged bodies if they have the same Charge/ potential ratio Resistance Potential Charge Charge/ potential ratio Resistance Potential Charge ANSWER DOWNLOAD EXAMIANS APP
Physics Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes 3R/4 5R/4 2R R/2 3R/4 5R/4 2R R/2 ANSWER DOWNLOAD EXAMIANS APP
Physics Find the resistance (in mega) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200m. 2000 40 80 4000 2000 40 80 4000 ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 5 R/4 5 R R/5 4 R/5 5 R/4 5 R R/5 4 R/5 ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a good conductor of heat but a bad conductor of electricity ? Celluloid Rubber Mica Asbestos Celluloid Rubber Mica Asbestos ANSWER DOWNLOAD EXAMIANS APP
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