A wire of resistance 24 ohms is bent in the form of a
circular ring. The effective resistance between the two
points on any diameter of the circle is
(1) 24 ohms
(2) 12 ohms
(3) 6 ohms
(4) 3 ohms
Answers were Sorted based on User's Feedback
Answer / nihal
As a diameter divides a circle exactly half a way, so the wire too is divided halvely. Thus the length of each 2 segments is half of original. Thus resistance of each is halved. As the 2 segments is between the same 2 points, the combination is parallel. Then,
R=(12*12)/(12+12)=6 ohms
Is This Answer Correct ? | 22 Yes | 4 No |
Answer / prachi
khud dhood lo doosron ko kyon pareshaan kar rhe ho
by the way answer is 6 ohm as the diameter divides the
circle in 2 different parts so it divides the wire in 2
different parts and resistance becomes half
Is This Answer Correct ? | 4 Yes | 3 No |
Answer / shahbaz khan
For resistance between two point of diameter (180degree) of circle
=180/360*24
=12 ohm
We got R1= 12 ohm
R2=R-R1
=24-12=12. [Given R=24]
Therefore effective resistance;
1/R=1/R1+ 1/R2
= 1/12 + 1/12
=1/6
R=6 ohm
Since Effective resistance is 6 ohm
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / swagger
kk...itll be 6 ohms between a and b
but the question says....ends of diameter
so the answer is 12ohms...
Is This Answer Correct ? | 2 Yes | 9 No |
If seven men drink up fifteen bottles of water in two days, then in seven days, four men would require how many bottles of water? (a) 25 (b) 30 (c) 22 (d) None of these
Gol Gumbaz in Bijapur houses the tomb of (a) Adil Shath-I (b) Mohammed Adil Shah (c) Taj Snetava (d) None of these
The normal specific density of a lead-acid batter uses its ____ as its standard. (a) rate of discharge (b) status of the charge (c) life expectance (d) operating temperature
A wire of resistance 24 ohms is bent in the form of a circular ring. The effective resistance between the two points on any diameter of the circle is (1) 24 ohms (2) 12 ohms (3) 6 ohms (4) 3 ohms
12 Answers College School Exams Tests, JExpo, ncert,
On the same voltage, the resistance of the filament of the bulbs of 200 watt and 100 watt are R1 and R2, then (1) The value of R1 is twice that of R2 (2) The value of R2 is four times the value of R1 (3) The value of R1 is four times that of R2 (4) The value of R2 is twice that of R1
The currency of Italy is (1) Lira (2) Krone (3) Leva (4) Kyat
i want to RRB Patna state non technical previous papers. i have to write a exam in 9 th December 2007 urgent?
hai guys i completed my bsc and i applied already ASSISTANT STATION MASTER POST... PLS tell the process of selection of asst stn mstr? 1st written test exm and next.......? and syllabus for written test?
Which of the following is the largest lake in the world? (1) Superior (2) Baikal (3) Chilka (4) Caspian Sea
?Akshara Dasoha? is related with (a) Literacy (b) Mid-day meal (c) Population control (d) Pollution control
i want the syllabus of RRB TC EXAM and pls send the answer to my email id:pavan.varma84@gmail.com
?Disinvestment? means selling the shares of the public sector units to the (a) Private sector only (b) Workers only (c) MNCs only (d) Workers or other companies (public or private)