Calculate the inductance L, of the coil in the circuit diagram shown above
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1995
A charge of 1.6 x 10-10C is placed in a uniform electric field of intensity 2.0 x 105 NC-1. calculate the magnitude of the electric force exerted on the change
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1995
A cell of e.m.f. 1.5 V and internal resistance of 2.59 is connected in series with an ammeter of resistance 0.59 and a resistor of resistance 7.09. Calculate the current in the circuit.
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1995
Which of the following will reduce the frequency of oscillation of a simple pendulum?
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1995
24 Na → 24 mg4 + X + energy 11 &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp2 &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nb…
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1995
Which of the following is a fundamental quantity?
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1995
Which of the following are emitted from a radioactive substance without altering either the nucleon number or the proton number of the substance?
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1995
At what angle to the horizontal must the nozzle of a machine gun be kept when firing to obtain a maximum horizontal range for the bullets?
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1995
The angular speed of an object describing a circle of radius 4m with a linear constant speed of 10 ms-1 is
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1995
A body of mass 7.5 kg is to be pulled up along a plane which is inclined at 30o to the horizontal. If the efficiency of the plane is 75%, what is the minimum force required to pull the body up the plane?(g = 10ms-1)
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1995
A student found out from a simple pendulum experiment that 20 oscillations were completed in 38 seconds. What is the period of oscillation of the pendulum?
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1995
A boy cycles continuously through a distance of 1.0 km in 5 minutes. Calculate his average speed
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1995
A mercury-in-glass thermometer reads - 20o at the ice point and 100o at the steam point. Calculate the celcius temperature corresponding to 70o on the thermometer.
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1995
A body weighing 10 N in air is partially immersed in water. It displaces water of mass 0.3 kg. What is the upthrust on the body? (g = 10 ms-2)
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1995
A car travelling at a uniform speed of 120km h-1 passes two stations in 4 minutes. Calculate the distance between the two stations.
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1995
The pressure of a given mass of gas changes from 200 Nm2 to 100 N m2, while its temperature drops from 127oC to - 73oC. Calculate the radio of the final volume of the gas to its initial volume.
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1995
Hot water at a temperature of t is added to twice that amount of water at a temperature of 30oC. If the resulting temperature of the mixture is 50oC. Calculate t
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1995
A body of specific heat capacity 450J kg-1 K-1 falls to the ground from rest through a vertical height of 20m. Assuming conservation of energy, calculate the change in temperature of the body on striking the ground level…
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1995
A brass rod is 2 m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100K. (Take the linear expansivity of brass as 1.8 x 10'5K").
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1995
A ray of light is incident on mirror m1 and after reflection is incident on mirror m2 as shown in the diagram, calculate the angle of reflection of the ray at mirror m2