FUTO Physics 2017/2018 - Model 1 Past Questions

Practice each question, then open it to see the full details.

A transformer is rated 240V. If the primary coil is 4000 turns and the secondary voltage is 12V, determine the number of turns in the secondary coil.

A.100
B.150
C.200
D.250

The production and type of charge of a body can only be accounted for by the

A.equilibrium in protons and neutrons
B.deficiency or surplus of electrons
C.deficiency or surplus of protons
D.deficiency or surplus of neutrons

The coefficient of friction between two perfectly smooth surface is

A.infinity
B.one
C.half
D.zero

A wire of length 100.0m at 30°C has a linear expansivity of 2 x 10^-5K^-1. Calculate the length of the wire at a temperature of -10°C

A.100.08m
B.100.04m
C.99.96m
D.99.92m

A cell of emf ,1.5V is connected in series with a 10Ω resistor and a current of 0.3A flows through the resistor. Find the internal resistance of the cell.

A.4.0Ω
B.3.0Ω
C.1.5Ω
D.1.00Ω

If a sonometer has a fundamental frequency of 450Hz, what is the frequency of the fifth overtone?

A.2700Hz
B.456Hz
C.444Hz
D.75 Hz

Capacitors are used in the induction coil to

A.control circuits
B.dissipate energy
C.prevent electric sparks
D.prevent distortion of electric fields

To convert a galvanometer to a voltmeter, a

A.high resistance is connected to it in series
B.high resistance is connected to it in parallel
C.low resistance is connected to it in series
D.low resistance is connected to it in parallel

What is the least possible error encountered when taking measurement with a meter rule?

A.0.1mm
B.1.0mm
C.0.5mm
D.0.2mm

A wheel and axles is used to raise a load whose weight is 800N when an effort of 250N is applied. If the radii is 800N when an effort of 250N is applied. If the radii of the wheel and axle are 800mm and 200mm respectively, the efficiency of the machine is

A.90%
B.80%
C.85%
D.87%