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 R/2 2R 3R/4 5R/4 R/2 2R 3R/4 5R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics The fuse in our domestic electric circuit melts when there is a high rise in Capacitance Inductance Resistance Current Capacitance Inductance Resistance Current ANSWER DOWNLOAD EXAMIANS APP
Physics In the absence of ozone layer, which rays will enter into atmosphere? Ultraviolet X-rays Infrared Visible Ultraviolet X-rays Infrared Visible ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument for measuring intensity of earthquakes is called Ergograph Pantagraph Seismograph Ediograph Ergograph Pantagraph Seismograph Ediograph ANSWER DOWNLOAD EXAMIANS APP
Physics Gasoline is useful in cars because it has Chemical potential energy Electrical potential energy Gravitational potential energy Kinetic energy Chemical potential energy Electrical potential energy Gravitational potential energy Kinetic energy ANSWER DOWNLOAD EXAMIANS APP
Physics Skating on ice is possible because The pressure on the ice due to skate raises its melting point The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water Ice is cold The surface of ice is smooth The pressure on the ice due to skate raises its melting point The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water Ice is cold The surface of ice is smooth ANSWER DOWNLOAD EXAMIANS APP
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