Theory

CH18 - CAPACITANCE

(a) (i) State what is meant by rectification of an alternating voltage...................................................................................

2024 Winter

4

Theory

CH18 - CAPACITANCE

(a) Define the capacitance of a parallel-plate capacitor. ...............................................................................................

2024 Winter

5

Theory

CH18 - CAPACITANCE

(a) (i) State what is meant by rectification of an alternating voltage...................................................................................

2024 Winter

4

Theory

CH18 - CAPACITANCE

Fig. 6.1 shows a capacitor of capacitance C connected in series with a resistor of resistance R.Initially the switch is open and there is a p.d. of 12...

2024 Summer

4

Theory

CH18 - CAPACITANCE

(a) Two capacitors X and Y are connected in series to a power supply of voltage V, as shown in Fig. 6.1. The capacitance of X is $C_X$ and the capacit...

2024 Summer

5

Theory

CH18 - CAPACITANCE

Fig. 6.1 shows a capacitor of capacitance $C$ connected in series with a resistor of resistance $R$. Initially the switch is open and there is a p.d. ...

2024 Summer

5

Theory

CH18 - CAPACITANCE

Two capacitors A and B are connected into the circuit shown in Fig. 5.1. Capacitor A has capacitance C and capacitor B has capacitance 3C. The electro...

2023 Summer

6

Theory

CH18 - CAPACITANCE

A capacitor C is charged so that the potential difference (p.d.) V across its terminals is 8.0 V. The capacitor is connected into the circuit of Fig. ...

2023 Winter

5

Theory

CH18 - CAPACITANCE

Part of an electric circuit is shown in Fig. 5.1.The circuit is used to produce half-wave rectification of an alternating voltage of potential differe...

2023 Summer

5

Theory

CH18 - CAPACITANCE

A capacitor of capacitance 470 \mu F is connected to a battery of electromotive force (e.m.f.) 24 V in the circuit of Fig. 5.1. The two-way switch S i...

2022 Winter

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The SI unit for potential difference (the volt) is given, in base units, by

2010 Summer

1

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The product of pressure and volume has the same SI base units as

2010 Summer

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

An ion is accelerated by a series of electrodes in a vacuum. A graph of the power supplied to the ion is plotted against time.What is represented by t...

2010 Summer

1

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

A vector quantity $V$ is resolved into two perpendicular components $X$ and $Y$. The angle between $V$ and component $X$ is $\theta$. The angle betwee...

2010 Summer

1

MCQ

CH3 - KINEMATICS

The diagram shows a velocity-time graph for a vehicle. The vehicle, moving at 4.0 ms-1, begins to accelerate at time = 0. What is the vehicle's ac...

2010 Summer

2

MCQ

CH3 - KINEMATICS

A small steel ball falls freely under gravity after being released from rest. Which graph best represents the variation of the height $h$ of the ball...

2010 Summer

1

MCQ

CH4 - DYNAMICS

Two equal masses travel towards each other on a frictionless air track at speeds of $60 \text{ cm s}^{-1}$ and $40 \text{ cm s}^{-1}$. They stick toge...

2010 Summer

2

MCQ

CH4 - DYNAMICS

A brick weighing 20 N rests on an inclined plane. The weight of the brick has a component of 10 N parallel with the plane. The brick also experiences ...

2010 Summer

2

MCQ

CH4 - DYNAMICS

The diagram shows two identical spheres X and Y. Initially, X moves with speed v directly towards Y. Y is stationary. The spheres collide elastical...

2010 Summer

3

MCQ

CH5 - FORCES, DENSITY & PRESSURE

Forces of 3 N, 4 N and 5 N act at one point on an object. The angles at which the forces act can vary. What is the value of the minimum resultant for...

2010 Summer

3