Explain the use of a uniform electric field and a uniform magnetic field for the selection of the velocity of a charged particle. You may draw a diagram if you wish.

Q#8 ( Past Exam Paper – June 2014 Paper 42 Q6 ) (a)  Explain the use of a unifo… Read more Explain the use of a uniform electric field and a uniform magnetic field for the selection of the velocity of a charged particle. You may draw a diagram if you wish.

A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end. The other

Q#34 ( Past Exam Paper – November 2015 Paper 11 Q19 ) A U-tube closed at one en… Read more A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end. The other

(a) Define electric potential at a point. (b) An isolated solid metal sphere is positively charged.

Q#24 ( Past Exam Paper – November 2014 Paper 41 & 42 Q5 ) (a)  Define  elec… Read more (a) Define electric potential at a point. (b) An isolated solid metal sphere is positively charged.

Two balls X and Y are moving towards each other with speeds of 5 m s-1 and 15 m s-1 respectively.

Q#20 ( Past Exam Paper – March 2019 Paper 12 Q8 ) Two balls X and Y are moving … Read more Two balls X and Y are moving towards each other with speeds of 5 m s-1 and 15 m s-1 respectively.

(a) Define, for a wire,(i) stress,(ii) strain. (b) A wire of length 1.70 m hangs vertically

Q#11 ( Past Exam Paper – June 2011 Paper 21 Q4 ) (a)  Define, for a wire, (i)… Read more (a) Define, for a wire,(i) stress,(ii) strain. (b) A wire of length 1.70 m hangs vertically

The diagram shows a non-uniform electric field near a positively charged and a negatively charged sphere. Four electrons, A, B, C and D,

Q#25 ( Past Exam Paper – November 2011 Paper 12 Q31 ) The diagram shows a non-u… Read more The diagram shows a non-uniform electric field near a positively charged and a negatively charged sphere. Four electrons, A, B, C and D,

The diagram shows an arrangement to stop trains that are travelling too fast. Trains coming from the left travel at a speed of 50 m s-1.

Q#36 ( Past Exam Paper – June 2013 Paper 12 Q7 ) The diagram shows an arrangeme… Read more The diagram shows an arrangement to stop trains that are travelling too fast. Trains coming from the left travel at a speed of 50 m s-1.