It takes 4 minutes to boil a quantity of water using an electrical heating coil. How long will it take to boil the same quantity of water using the same coil if the current is doubled? [Neglect any external heat losses]

Similar Questions

I. A liquid boils when its saturated vapour pressure is equal to the external pressure II. Dissolve...

the property that is propagated in a traveling wave is ...

Which of the following statements about electrolysis is NOT correct? ...

2000cm3 of a gas is collected at 27oC and 700mmHg. What is the volume of the gas at standard tempera...

A balloon inflated with helium gas at ground level is released. As it rises through a constant tempe...

In the curve above, PQRST represents an alternating voltage of frequency 50Hz. The time interval bet...

Which of the following factors does not affect the the electric resistance of a wire? ...

A block of volume 3 x 105m3 and density 2.5 x 103 kg m-3 is suspended from a spring balance with \(\...

water is a poor thermometric liquid because it ...

Which of the following curved surfaces will produce a real image? I. Concave mirror II. Convex mirro...