For a point charge to feel a net force in a homogeneous magnetic field, which one of the following statements is true? The charge must: w) move parallel to the magnetic lines of flux x) have a component of its motion perpendicular to the lines of flux y) be stationary z) be a positive charge Answer : ANSWER: X -- HAVE A COMPONENT OF ITS MOTION PERPENDICULAR TO THE LINES OF FLUX ...
Three 60 W bulbs are in parallel across the 230 V power line. If one bulb burns out Answer : Three 60 W bulbs are in parallel across the 230 V power line. If one bulb burns out the other two bulbs will remain glowing ...
When white light is passed through a double slit which of the following statements is TRUE: w) Each of the bright bands is dispersed into a spectrum x) Only the central band is dispersed into ... one are dispersed into a spectrum z) Each band has a single color different from its neighboring bands Answer : ANSWER: Y -- ALL THE BRIGHT BANDS EXCEPT THE CENTRAL ONE ARE DISPERSED INTO THE SPECTRUM...
Three resistors which have different values are connected in series. Which one of the following statements is correct? w) The potential drop across all three resistors is the same. x) The same current passes through all three resistors. y) The same power is dissipated by all three resistors. Answer : ANSWER: X -- THE SAME CURRENT PASSES THROUGH ALL THREE RESISTORS. ...
Is the filament resistance lower or higher in a 500 watt light bulb than in a 100 watt light? Assume that both bulbs have been designed to operate at 110 volts. Answer : ANSWER: LOWER...
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