• 9702 June 2019 Paper 42 Worked Solution | A-Level Physics

Question 2
At point A, the gas has volume 2.4 × 10-3 m3, pressure 1.6 × 105 Pa and temperature 300 K.




Question 3
A spring is hung vertically from a fixed point. A mass M is hung from the other end of the spring, as illustrated in Fig. 3.1.



Question 5
The initial section of the transmission line for a signal from a telephone exchange is illustrated in Fig. 5.1.



Question 6
Two parallel metal plates A and B are held a distance d apart in a vacuum, as illustrated in Fig. 6.1.

Question 8

An electron is travelling in a vacuum at a speed of 3.4 × 107 m s-1. The electron enters a region of uniform magnetic field of flux density 3.2 mT, as illustrated in Fig. 8.1.

Question 9
Part of a circuit incorporating an operational amplifier (op-amp) is shown in Fig. 9.1.