Physics The purpose of choke in a fluorescent lamp is : To increase the current flow To decrease the resistance To decrease the current flow Ro decrease the voltage momentarily To increase the current flow To decrease the resistance To decrease the current flow Ro decrease the voltage momentarily ANSWER DOWNLOAD EXAMIANS APP
Physics Ball bearings are used in cycles, scooters etc to Reduce the friction between the wheel and the axle Reduce the friction between ground and the whee None of these Increase the friction between the wheel and the axle Reduce the friction between the wheel and the axle Reduce the friction between ground and the whee None of these Increase the friction between the wheel and the axle ANSWER DOWNLOAD EXAMIANS APP
Physics One can distinguish a telescope from a microscope by observing Length Length and size of the lens Size of the lens Colour Length Length and size of the lens Size of the lens Colour ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works by the principle of Reflection Total internal reflection Refraction Diffraction Reflection Total internal reflection Refraction Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics It is easy to burst a gas-filled balloon with a needle than with a nail. It is because Needle exerts more pressure than nail on the balloon. Nail exerts more pressure than needle on the balloon. Gas is reactive with the needle. Nail is more longer than needle. Needle exerts more pressure than nail on the balloon. Nail exerts more pressure than needle on the balloon. Gas is reactive with the needle. Nail is more longer than needle. ANSWER DOWNLOAD EXAMIANS APP
Physics Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below. 1, 2, 3 and 4 1, 2 and 3 only 3 and 4 only 4 only 1, 2, 3 and 4 1, 2 and 3 only 3 and 4 only 4 only ANSWER DOWNLOAD EXAMIANS APP
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