Lakhmir Singh and Manjit Kaur Solutions for Chapter: Electricity, Exercise 10: Questions Based on High Order Thinking Skills (HOTS)

A student made an electric circuit shown here to measure the current through two lamps.
(a) Are the lamps in series or parallel?
(b) The student has made a mistake in this circuit. What is the mistake?
(c) Draw a circuit diagram to show the correct way to connect the circuit. Use the proper circuit symbols in your diagram.

Draw a circuit diagram to show how 3 bulbs can be lit from a battery so that 2 bulbs are controlled by the same switch while the third bulb has its own switch.

An electric heater is connected to the $230 \mathrm{V}$ mains supply. A current of $8 \mathrm{A}$ flows through the heater.
(a) How much charge flows around the circuit each second?
(b) How much energy is transferred to the heater each second?

How many electrons are flowing per second past a point in a circuit in which there is a current of $5 \mathrm{amp}$?