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 An instrument that records earthquakes is Seismograph Thermograph Ergograph Ediograph Seismograph Thermograph Ergograph Ediograph ANSWER DOWNLOAD EXAMIANS APP
Physics Gasoline is useful in cars because it has Chemical potential energy Kinetic energy Gravitational potential energy Electrical potential energy Chemical potential energy Kinetic energy Gravitational potential energy Electrical potential energy ANSWER DOWNLOAD EXAMIANS APP
Physics The first law of thermodynamics is simply the case of Charle's law The law of heat exchange The law of conservation of energy Newton's law of cooling Charle's law The law of heat exchange The law of conservation of energy Newton's law of cooling ANSWER DOWNLOAD EXAMIANS APP
Physics Mica is used in electrical appliances such as electric iron because mica is a bad conductor of heat as well as electricity a good conductor of heat as well as electricity a bad conductor of heat but a good conductor of electricity a good conductor of heat but a bad conductor of electricity a bad conductor of heat as well as electricity a good conductor of heat as well as electricity a bad conductor of heat but a good conductor of electricity a good conductor of heat but a bad conductor of electricity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following device is best suited for measuring the temperature inside metallurgical furnaces? Thermocouple Pyrometer Thermometer Thermistor Thermocouple Pyrometer Thermometer Thermistor ANSWER DOWNLOAD EXAMIANS APP
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