A wire when connected to 220 V mains sup...

A wire when connected to 220 V mains supply has power dissipation`P_(1)`. Now, the wire is cut into two equal pieces which are connected in parallel to same supply. Power dissipation in this case is `P_(2)`. Then, `P_(1) : P_(2)` is

`1`

`2`

`3`

`4`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

CURRENT ELECTRICITY
BITSAT GUIDE|Exercise Bitsat Archives|26 Videos
CATHODE RAY, PHOTOELECTRIC EFFECT AND X-RAYS
BITSAT GUIDE|Exercise BITSAT Archives|6 Videos
ELECTRIC CAPACITOR
BITSAT GUIDE|Exercise BITSAT archives|6 Videos

Similar Questions

Explore conceptually related problems

A wire when connected to 220 V mains supply has power dissipation P_1 . Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is P_2 . Then P_2: P_1 is

A wire when connected to 220V mains sapply power dissipation P_(1) Now the wire is cut into two equal pieces which are connected in parallel to the same apply power dissipation in this case is P_(2) then P_(1) : P_(2) is

A heater coil connected to a supply of a 220 V is dissipating some power . P_(1) The coil is cut into half and the two halves are connected in parallel. The heater now dissipates a power . P_(2) Theratio of power P_(1) : P_(2) is

A resistor R has power of dissipation P with cell voltage E . The resistor is cut in equal parts and all parts are connected in parallel with same cell. The new power dissipation is

Power generated across a uniform wire connected across a supply is H . If the wire is cut into n equal parts and all the parts are connected in parallel across the same supply, the total power generated in the wire is

If two heaters, each of power 1 kW are connected in parallel to a 250 V supply, their combined rate of heating will be

Two resistors whose value are in ratio 2 : 1 are connected in parallel with one cell. Then ratio of power dissipated is

A heater coil c onnected across a give potential difference has power P . Now , the coil is cut into two equal halves and joined in parallel . Across the same potential difference, this combination has power

Five equal risistors when connected in series dissipted 5 W power. If they are connected in parallel, the power dissipated will be

BITSAT GUIDE-CURRENT ELECTRICITY-Bitsat Archives

A wire when connected to 220 V mains supply has power dissipationP(1)....
Text Solution
|
Ohms law says
Text Solution
|
A current 4.0 A exist in a wire of cross-sectional area 2.0 mm^(2). If...
Text Solution
|
What will be the value of current I in the circuit shown ?
Text Solution
|
In the given circuit (as shown in figure), each capacitor has a capaci...
Text Solution
|
Three bulbs X, Y and Z are connected as shown in figure. The bulbs Y a...
Text Solution
|
In the circuit shown, the value of I in ampere is
Text Solution
|
In the circuit shown below, the ammeter reading is zero. Then, the val...
Text Solution
|
A steady current flow in a metallic conductor of non-uniform cross-sec...
Text Solution
|
Two bulbs which consume powers P(1) " and P(2) are connected in series...
Text Solution
|
Three conductors draw respectively currents of 1 A, 2 A and 4 A when c...
Text Solution
|
24 identical cells, each of internal resistance 0.5 Omega, are arrange...
Text Solution
|
A wire is stretched as to change its diameter by 0.25%. The percentage...
Text Solution
|
If in the circuit shown below, the internal resistance of the battery ...
Text Solution
|
When the potential difference applied across a solid conductor is incr...
Text Solution
|
A box with two terminals is connected in series with a 2 V battery, an...
Text Solution
|
A current of 2 A flows in an electric circuit as shown in figure. The ...
Text Solution
|
When a battery connected across a resistor of 16 Omega, the voltage ac...
Text Solution
|
If a rod has resistance 4 Omega and if rod is turned as half circle, t...
Text Solution
|
In the circuit, the potential difference across PQ will be nearest to
Text Solution
|
Each resistance shown in figure is 2 Omega. The equivalent resistance ...
Text Solution
|