Theory

CH22 - MAGNETIC FIELDS

(a) Define the Τesla....................................................................................................................................

2009 Summer

Theory

CH22 - MAGNETIC FIELDS

(a) On Fig. 6.1, sketch the pattern of the magnetic flux in the horizontal plane ABCD due to the current-carrying wire. Draw at least four flux lines....

2009 Winter

Theory

CH22 - MAGNETIC FIELDS

Outline briefly the main principles of the use of magnetic resonance to obtain diagnostic information about internal body structures.

2009 Winter

Theory

CH22 - MAGNETIC FIELDS

(a) On Fig. 5.2, (i) draw four field lines to represent the pattern of the magnetic field around wire X due solely to the current in wire X, [2] (ii...

2009 Winter

Theory

CH22 - MAGNETIC FIELDS

(a) A constant current is maintained in a long straight vertical wire. A Hall probe is positioned a distance $r$ from the centre of the wire, as shown...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

Negatively-charged particles are moving through a vacuum in a parallel beam. The particles have speed v. The particles enter a region of uniform magne...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

(a) A uniform magnetic field has constant flux density $B$. A straight wire of fixed length carries a current $I$ at an angle $\theta$ to the magnetic...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

(a) A uniform magnetic field has constant flux density $B$. A straight wire of fixed length carries a current $I$ at an angle $\theta$ to the magnetic...

2010 Summer

Theory

CH22 - MAGNETIC FIELDS

Positive ions are travelling through a vacuum in a narrow beam. The ions enter a region of uniform magnetic field of flux density $B$ and are deflecte...

2010 Winter

Theory

CH22 - MAGNETIC FIELDS

Positive ions are travelling through a vacuum in a narrow beam. The ions enter a region of uniform magnetic field of flux density $B$ and are deflecte...

2010 Winter

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which unit is not an SI base unit?

2023 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

What is the best estimate of the number of atoms in a piece of metal of volume 50 cm$^3$?

2023 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A copper pipe has a true diameter of 42.03 mm.A builder measures the diameter of the pipe five times using digital calipers. The measurements are show...

2023 Summer

MCQ

CH3 - KINEMATICS

Two forces, each of 10 N, act at a point P, as shown. The angle between the directions of the forces is 120°. What is the magnitude of the result...

2023 Summer

MCQ

CH3 - KINEMATICS

One object moves directly from P to R. In a shorter time, a second object moves from P to Q to R. Which statement about the two objects is correct...

2023 Summer

MCQ

CH3 - KINEMATICS

A ball is kicked so that it has an initial velocity of 12 m s⁻¹ at an angle of 50° to horizontal ground. Assume that air resistance is neg...

2023 Summer

MCQ

CH4 - DYNAMICS

A camera drone of mass 1.20 kg hovers at a fixed point above the ground. The drone has four propellers. In a time of 1.00 s, each propeller pushes ...

2023 Summer

MCQ

CH4 - DYNAMICS

A box rests on the Earth, as shown. Newton’s third law describes how forces of the same type act in pairs. One of the forces of a pair is the w...

2023 Summer

MCQ

CH5 - FORCES, DENSITY & PRESSURE

A small ball is held at the surface of liquid oil in a container. The ball is released from rest and falls through the oil. The ball has velocity $v$....

2023 Summer

MCQ

CH4 - DYNAMICS

An object of mass $m$, moving at speed $u$ along a frictionless horizontal surface, collides head-on with a stationary object of mass $4m$. After t...

2023 Summer