Dr. Sunil Kushwaha Solutions for Chapter: Magnetic Effects Of Electric Current, Exercise 7: Summative Assessment

 A straight conductor is held perpendicular to the plane of paper and it carries a current downwards. Draw the magnetic lines of force. 

In a household electric circuit different appliances are connected in parallel to one another. Give two reasons.

An electrician puts a fuse of rating $15 \mathrm{A}$ in that part of domestic electrical circuit in which an electrical heater of rating $1.5 \mathrm{kW}, 220 \mathrm{V}$ is operating. What is likely to happen in this case and why? What change, if any, needs to be made?

Draw a schematic diagram of household/domestic wiring. Give its essential features.

You are given following current-time graphs from two different sources:

(i) Name the type of current in two cases
(ii) Identify any one source of each type of these currents.
(iii) What is the frequency of current in case II in India?
(iv) Use above graphs to write difference between the current in two cases.

Explain, the principle, construction and working of DC generator.

Explain the meaning of the words ‘electromagnetic’ and ‘induction’ in the term electromagnetic induction. On what factors does the value of induced current produced in a circuit depend? Name and state the rule used for determination of direction of induced current. State one practical application of this phenomenon in everyday life.

Describe an activity to demonstrate the pattern of magnetic field lines around a straight conductor carrying current.

State the rule to find the direction of magnetic field associated with a current carrying conductor.