Theory

CH21 - ELECTRONICS

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

2024 Winter

4

Theory

CH21 - ELECTRONICS

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

2024 Winter

4

Theory

CH21 - ELECTRONICS

(a) State what is meant by the de Broglie wavelength.....................................................................................................

2023 Summer

4

Theory

CH21 - ELECTRONICS

(a) State what is meant by the de Broglie wavelength.....................................................................................................

2023 Summer

6

Theory

CH21 - ELECTRONICS

(a) State two properties of an ideal operational amplifier (op-amp).1. ..................................................................................

2021 Winter

3

Theory

CH21 - ELECTRONICS

(a) An operational amplifier (op-amp) has two input terminals and one output terminal.State what is meant by the gain of an op-amp.......................

2021 Winter

5

Theory

CH21 - ELECTRONICS

(a) Two properties of an ideal operational amplifier (op-amp) are infinite input impedance and infinite bandwidth.State what is meant by:(i) infinite ...

2021 Summer

5

Theory

CH21 - ELECTRONICS

(a) State two properties of an ideal operational amplifier (op-amp).1. ..................................................................................

2021 Winter

4

Theory

CH21 - ELECTRONICS

The output of a microphone is processed using a non-inverting amplifier. The amplifier incorporates an operational amplifier (op-amp).(a) State, by re...

2020 Summer

5

Theory

CH21 - ELECTRONICS

An ideal operational amplifier (op-amp) is to be used in a comparator circuit. Part of the comparator circuit is shown in Fig. 7.1. [Image_1: Fig. 7.1...

2020 Winter

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which quantity with its unit is correct?

2016 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The luminosity $L$ of a star is given by $L = 4\pi r^2 \sigma T^4$ where $r$ is the radius of the star, $T$ is the temperature of the star, $\sig...

2016 Summer

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The diagram shows two vectors X and Y, drawn to scale. If X = Y − Z, which diagram best represents the vector Z?

2016 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

The diagram shows a cathode-ray oscilloscope (c.r.o.) being used to measure the rate of rotation of a flywheel.The flywheel has a small magnet M mount...

2016 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

A student determines the density $\rho$ of steel by taking measurements from a steel wire. mass $m = 6.2 \pm 0.1 \text{ g}$ length $l = 25.0 \pm 0.1 \...

2016 Summer

3

MCQ

CH3 - KINEMATICS

The acceleration of free fall on the Moon is $1.6 \, \text{m}\,\text{s}^{-2}$. The Moon has no atmosphere. An astronaut standing on the surface of the...

2016 Summer

2

MCQ

CH3 - KINEMATICS

A tennis ball is released from rest at the top of a tall building. Which graph best represents the variation with time $t$ of the acceleration $a$ of ...

2016 Summer

3

MCQ

CH3 - KINEMATICS

The graph shows how the velocity $v$ of an object moving in a straight line varies with time $t$ from $t = 0$ to $t = T$. Which graph represents th...

2016 Summer

3

MCQ

CH4 - DYNAMICS

A ball falls vertically onto horizontal ground and rebounds, as shown. The ball has momentum $p_1$ downwards just before hitting the ground. After ...

2016 Summer

3

MCQ

CH4 - DYNAMICS

A sphere falls from rest through the air. The graph shows the variation with time of the sphere’s velocity. Which diagram shows the forces ac...

2016 Summer

3