Advertisements
Advertisements
Question
Why is a series arrangement not used for connecting domestic electrical appliances in a circuit?
Advertisements
Solution
A series arrangement is not used for connecting domestic electrical appliances because different appliances have different resistances; this leads to the problem of unequal voltage distribution. Another reason why this arrangement is not preferred is that if one of the appliances gets damaged, the power supply to all other appliances is cut off.
APPEARS IN
RELATED QUESTIONS
Write Joule's law of heating.
Write down the formula for the heat produced when a current I is passed through a resistor R for time t.
A heating coil has a resistance of 200 Ω. At what rate will heat be produced in it when a current of 2.5 A flows through it?
How much heat will an instrument of 12 W produce in one minute if it is connected to the heat produced by it?
If the current flowing through a fixed resistor is halved, the heat produced in it will become:
Identify the figure and give its use.

Statement 1 : Electric current ( flow of electrons ) creates heat in the resistor.
Statement 2 : Heat in the resistor is created according to the rule of energy conservation.
Explain Statement 1 with the help of Statement 2.
Rewrite the following statement by selecting the correct option:
1 A = ____________ mA.
A coil of an alloy _______ is used in electric heater cooker as a resistor.
Name any two appliances which works on the phenomenon of heating effect of electric current.
Which of the following is correct?
Mark the correct choice
- Assertion: Electric appliances with a metallic body have three wire connections.
- Reason: Three-pin connections reduce the heating of the connecting wires.
Which of the following gases are filled in electric bulbs?
Unscramble the following words:
SFEU
Can we use the same fuse in a geyser and a television set? Explain.
What are the uses of electromagnets?
An electric fuse is a wire made up of a material having ______ melting point.
A trip switch is a ______ safety device.
The electric fuse works on the Joule heating principle.
Find the odd one out.
