UNIZIK Physics 2015/2016 Day 3 Past Questions

Which Of the following which is different from the other?

A milliammeter of resistance 5 ohms and full scale deflection of 50mA is to be used to measure a potential difference of 50V. The resistance of the multiplier should be

The electromagnetic waves that are sensitive to temperature changes are

A sealed flask contains 600cm³ of air at 27°C and is heated to 35°C at constant pressure. The new volume is

If a wheel 1.2m in diameter rotates at one revolution per second, calculate the velocity of the wheel.

A piece of iron weighs 250N in air and 200N in a liquid of density 1000kgm^-3. The volume of the iron is
[g = 10m/s²]

The velocity of sound in air will be doubled if its absolute temperature is

A cell of internal resistance r is connected to an external resistor R. The condition for maximum power transfer is

If an object is placed between two parallel plane mirrors with their reflecting surfaces facing each other, how many images of the object will be formed?

A parallel plate capacitor has a common plate area of 5 x 10^-8 m² and plate separation of 2 x 10^-3 m.
Assuming free space, what is the capacitance?
(E₀ = 9.0 x 10^-12 C²N^-1M¹)