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

What is a reasonable estimate of the mass of a raindrop?

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

Which quantity is a scalar?

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

A galvanometer of resistance 5\(\Omega\) is to be used in a null method.In order to protect the galvanometer from damage due to an excessive initial c...

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

Readings are made of the current $I$ for different voltages $V$ across a fixed resistor. The results are plotted on a graph to show the variation of $...

2020 Summer

3

MCQ

CH3 - KINEMATICS

A stone is dropped from a height of 20 m above water. The graph shows the variation with time of the velocity of the stone. Which statement describ...

2020 Summer

2

MCQ

CH3 - KINEMATICS

A car X is travelling at a constant speed $u$ along a straight road. At time $t = 0$ a second car Y is a distance $d_0$ behind car X and travelling at...

2020 Summer

4

MCQ

CH4 - DYNAMICS

The resultant force acting on an object is slowly increased. Which graph could show the variation with time $t$ of the momentum $p$ of the object?&nb...

2020 Summer

1

MCQ

CH4 - DYNAMICS

An astronaut has a weight of 660 N when she is standing on the Earth's surface. The acceleration of free fall on the surface of Mars is $3.71 \, \tex...

2020 Summer

3

MCQ

CH4 - DYNAMICS

A mass $m_1$ travelling with speed $u_1$ collides with a mass $m_2$ travelling with speed $u_2$ in the same direction. After the collision, mass $m_1$...

2020 Summer

3

MCQ

CH4 - DYNAMICS

The diagrams show a negative electric charge situated in a uniform electric field and a mass situated in a uniform gravitational field. Which row s...

2020 Summer

2