English

Give Two Precautious that You Would Take While Putting off an Electric Switch. - Physics

Advertisements
Advertisements

Question

Give two precautious that you would take while putting off an electric switch.

One Line Answer

Solution

We will make sure that no naked wire is touching the button of the switch and neither the hand nor the switch is wet.

shaalaa.com
  Is there an error in this question or solution?
Chapter 8: Electric Power and House hold Circuits - Short Answers

APPEARS IN

ICSE Physics [English] Class 10
Chapter 8 Electric Power and House hold Circuits
Short Answers | Q 68

RELATED QUESTIONS

Which uses more energy, a 250 W TV set in 1 hr, or a 1200 W toaster in 10 minutes?


1 calorie =  _________ joule.


Name two safety devices which are connected to the live wire of a household electric circuit


An electric bulb is rated at 220 V, 100 W. (a) what is its resistance? (b) what safe current can be passed through it?


A simple electric circuit has a 30 V battery and a resistor ot 60 o. What will be the current in the circuit? The resistance of the oonnecting wires is negligible.


Can you produce electricity from magnetism?

The diagram shows a coil connected to a center zero galvanometerG . The galvanometer shows a deflect ion to the right when the north pole N of a powerful magnet is moved to the right as shown .

(i) Explain, why the defelct ion occurs in the galvanometer.
(ii ) State whether th e current in the coil is cl ockwise or anticl ockwise
when viewed from the end P.
(iii ) State th e observation in G when the coil is moved away from north
pole N of the magnet keeping the magnet stationary.
(iv)State the observation in G when both the coil and the magnet are
moved to right at th e same speed .


State relative advantages and disadvantages of ring system of wiring over the tree system.


Two resistances R1 = 4Ω and R2 = 6Ω are connected in series. The combination is connected with a battery of e.m.f. 6V and negligible resistance. Calculate:
(i) the heat produced per minute in each resistor,
(ii) the power supplied by the battery.


Two bulbs are rated: bulb A 100W, 120 V bulb B 10W, 120 V. If both are connected across a 120V supply, which bulb will consume more energy, When in series? Also calculate the current through each bulb in above cases.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×