Earth is between the sun and moon and all lies a straight line.√

Each material is brought in turn to touch the cap√

the conduction will discharge the electroscope while the insulation will not√

Magnetic field is the region surrounding a magnet where magnetic effect or force is experienced.√

The lamp goes on and off√ current flows through the wire from A to B wire experiences a force ( by Flemings left hand rule) and knocks c completing second circuit making lamp to light√

Current stops flowing in first circuit, there is no force on the wire and wire falls to touch mercury and process repeats

1.16 A√

Time = 0.08 x 2 = 0.16 seconds.
2 x distance = speed x time.

d = 1400 x 0.16

=112√

Angle of incident is greater than critical angle and light must be moving from more optically dense to loss dense medium√

Focal length of the eye lens too long√

Heat.√

(a),i, divergence increases√
ii, divergence increases√

iii, capacitance decreases√

- Capacitance decreases√

c.) ( i), A Blue or black √

B Brown or red√

(ii). The hair dryer is not dangerous; the plastic case is poor conduction of electricity√

(iii). i, S3 √

ii, S1 and S3 √

a). (i), Filament heat up cathode; causing electrons to move out of the cathode√

(ii),1. Grid√

(ii), controls brightness of the sport √

Since it is negatively charged√

It repels electrons reducing the number√

reaching screen.

(iii) a vertical line would appear√

(a) (i) positive√

(ii) A-Alpha radiation√

B – Gamma radiation√

C - Beta radiation√

(iii) C is lighter than A√

b,) So that the electron do not lose some of their energy through collision with air molecules on their way to the target.√

(ii). When diode is forward biased√ effective resistance is less than smallest resistance hence more current flows√

( iv) Diode is in reverse bias√ and effective resistance is only through the resistor√