D. coloured symbols D. coloured symbols C. use pencil C. use pencil B. 90° corners B. 90° corners A. Straight lines A. Straight lines Which of the following is not a rule for drawing circuit diagrams?
A. Battery lasts A. Battery lasts longer Which of the following is not an advantage of a parallel circuit? C. Bulbs can work C. Bulbs can work independently B. bulbs same B. bulbs same brightness D. Bulbs work if D. Bulbs work if one blows
C. 4.5 volts C. 4.5 volts A 9v battery is connected in series to 2 bulbs, 1 bulb uses 4.5 units of energy. How much does the other bulb use? A. 4.5 watts A. 4.5 watts B. 9 volts B. 9 volts D. 4.5 amps D. 4.5 amps
C. All the same C. All the same In a parallel circuit 2,4 and 6 amps flow in branch a,b and c respectively. Which branch has the brightest bulb? A. branch a A. branch a D. branch c D. branch c B. branch b B. branch b
A. 12v bright A. 12v bright 2x 6v dimmer A 2 branch parallel circuit is built containing a 12v battery and 3 bulbs. What is the voltage and brightness of each bulb? B. 12v bright B. 12v bright 2x 6v bright D. 12v dim D. 12v dim 2x 6v bright C. 3 x 12v bright C. 3 x 12v bright