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 5R/4 R/2 2R 3R/4 5R/4 R/2 2R 3R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics Materials that allow electricity to flow are called Insulators Conductors Stimulators Electron flows Insulators Conductors Stimulators Electron flows ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these branches of Physics deal with heat and temperature and their relation to energy and work? Mechanics Atomic Physics Thermodynamics Geophysics Mechanics Atomic Physics Thermodynamics Geophysics ANSWER DOWNLOAD EXAMIANS APP
Physics Time of exposure required for taking photograph of an object depends upon the Proximity of object Size of the object Skill of photographer Brightness of the object Proximity of object Size of the object Skill of photographer Brightness of the object ANSWER DOWNLOAD EXAMIANS APP
Physics Period of oscillation of 3 cm microwaves in seconds is 0.01 1 × 10–10 0.001 1 × 1010 0.01 1 × 10–10 0.001 1 × 1010 ANSWER DOWNLOAD EXAMIANS APP
Physics A Fuse wire is characterised by Low resistance and low melting point High resistance and low melting point Low resistance and high melting point High resistance and high melting point Low resistance and low melting point High resistance and low melting point Low resistance and high melting point High resistance and high melting point ANSWER DOWNLOAD EXAMIANS APP
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