Two resistance R(1) and R(2) when connec...

Two resistance `R_(1)` and `R_(2)` when connected in series and parallel with `120 V` line, power consumed will be `25 W` and `100 W` respectively. . Then the ratio of power consumed by `R_(1)` to that consmed by `R_(2)` will be

`(1)/(4)`

`(1)/(3)`

`(1)/(2)`

`1`

Text Solution

Verified by Experts

The correct Answer is:

`P_(S)=(P_(1)P_(2))/(P_(1)+P_(2)),P_(P)=P_(1)+P_(2)`

Topper's Solved these Questions

CURRENT ELECTRICITY
NARAYNA|Exercise Level 3|46 Videos
CURRENT ELECTRICITY
NARAYNA|Exercise NCERT Based Questions|13 Videos
CURRENT ELECTRICITY
NARAYNA|Exercise Level 2 C.W|59 Videos
COMMUNICATION SYSTEM
NARAYNA|Exercise Level-II(H.W)|25 Videos
DUAL NATURE OF RADIATION AND MATTER
NARAYNA|Exercise ASSERTION AND REASON|15 Videos

Similar Questions

Explore conceptually related problems

When two resistances R_1 and R_2 are connected in series , they consume 12 W powers . When they are connected in parallel , they consume 50 W powers . What is the ratio of the powers of R_1 and R_2 ?

Two resistors of 6 Omega " and " 9 Omega are connected in series to a 120 V source. The power consumed by the 6 Omega resistor is

Two resistance R_(1)=100pm 3Omega and R_(2)=200pm4Omega are connected in seriesg. What is their equivalent resistance?

Two conductors of resistance R_(1) (50 +- 2) ohm and R_(2) = (100 +- 4) ohm are connected in (a) series and (b) parallel. Find the equivalent resistance.

Two resistors of 6 Omega and 9 Omega are connected in series to a 120 volt source. The power consumed by the 6 Omega resistor is

Two identical electric lamps marked 500 W , 220 V are connected in series and then joined to a 110 V line. The power consumed by each lamp is

Two resistance R_(1) and R_(2) may be connected either in series or in parallel across a battery of zero internal resistance. It is required that the joule heating for the parallel combination be five times that for series combination if R_(1) is 100 Omega find R_(2) .

If two identical heaters each rated as (1000 W, 220 V) are connected in parallel to 220 V, then the total power consumed is

NARAYNA-CURRENT ELECTRICITY-Level 2 H.W

A current of 7 A flows through the circuit as shown in the figure the ...
Text Solution
|
If a copper wire is stretched to make it 0.1% longer wha is the percen...
Text Solution
|
Two resistance R(1) and R(2) when connected in series and parallel wit...
Text Solution
|
Two identical electric lamps marked 500 W, 220 V are connected in seri...
Text Solution
|
A conductor of resistance 3 ohm is stretched uniformly till its length...
Text Solution
|
Ten 50W bulbs are operated for 10 hours per day. The energy consumed i...
Text Solution
|
Two electic bulbs marked 25 W -220 V and 100 W - 220 V are connected i...
Text Solution
|
Two batteries of different emf and internal resistances connected in s...
Text Solution
|
The pd across terminals of a cell is found to be 29 volt and 28 volt r...
Text Solution
|
The current in a circuit containing a battery connected to 2Omega resi...
Text Solution
|
The potential difference across te terminals of a battery is 10 V when...
Text Solution
|
Two cells of emf 3V and 5V and internal resistance r(1) and r(2) respe...
Text Solution
|
A battery when connected by resistance of 16Omega gives a terminal vo...
Text Solution
|
When a resistor of 11 Omega is connected in series with an electric ce...
Text Solution
|
Two cells of emf 4 V and 8 V are connected to two resistor 4Omega and ...
Text Solution
|
If in the circuit shown below, the internal resistance of the battery ...
Text Solution
|
Voltmeter reading in the given circuit is (voltmeter is ideal)
Text Solution
|
For a cell the graph between the p.d. (v) across the terminals of the ...
Text Solution
|
The minimum number of cells in mixed grouping required to produced a m...
Text Solution
|
A battery of emf E and internal resistance r is connected to a resisto...
Text Solution
|