Physics Indicate the false statement about the resistance of a wire It depends on material of wire It is directly proportional to the length of wire Resistance of metallic wire increases with increase in temperature It is directly proportional to the area of cross-section of wire It depends on material of wire It is directly proportional to the length of wire Resistance of metallic wire increases with increase in temperature It is directly proportional to the area of cross-section of wire ANSWER DOWNLOAD EXAMIANS APP
Physics The reflector of a search light is a : Convex mirror Concave mirror Plane mirror Cylindrical mirror Convex mirror Concave mirror Plane mirror Cylindrical mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Dynamo is a device for converting Magnetic energy into electrical energy Mechanical energy into electrical energy Heat energy into electrical energy Chemical energy into electrical energy Magnetic energy into electrical energy Mechanical energy into electrical energy Heat energy into electrical energy Chemical energy into electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these is true of all simple machines? Work input > work output Both A & B None of these These make work easier Work input > work output Both A & B None of these These make work easier ANSWER DOWNLOAD EXAMIANS APP
Physics Which phenomenon is responsible for the echo of sound wave? Interference Reflection Refraction Polarisation Interference Reflection Refraction Polarisation ANSWER DOWNLOAD EXAMIANS APP
Physics The rate of flow of electric charge is measured in Ampere-coulomb Ampere Coulomb Ampere/coulomb Ampere-coulomb Ampere Coulomb Ampere/coulomb ANSWER DOWNLOAD EXAMIANS APP
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