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CBSE Class 11-science Answered

How does a ceiling fan's regulator control its speed?
Asked by | 19 Sep, 2012, 04:27: PM
answered-by-expert Expert Answer
It usually a combination of both in modern regulators.
They control the current input to the motor at the same potential difference.
Answered by | 20 Sep, 2012, 01:43: PM

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CBSE 11-science - Physics
obtain the expression for time period of simple pendulum performing shm.
Asked by rustampathan | 25 Feb, 2024, 06:39: PM
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CBSE 11-science - Physics
explain how angular momentum can be expressed as the vector product of two vectors.how is it's direction determined discuss the cases of minimum and maximum angular momentum
Asked by gipaalsy | 08 Feb, 2024, 05:41: AM
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CBSE 11-science - Physics
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Asked by rkdubey133 | 19 Jan, 2024, 10:03: PM
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CBSE 11-science - Physics
rotational motion
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Asked by priyankaprajapti81 | 04 Nov, 2023, 10:47: PM
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CBSE 11-science - Physics
please answer
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Asked by gdeadshot85 | 14 Jan, 2023, 09:58: PM
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CBSE 11-science - Physics
three diSc each of mass m and radius r placed in contact with each otheer find moment of inertia
Asked by devanshchauhan325 | 23 Dec, 2022, 07:34: AM
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CBSE 11-science - Physics
Prove that Torque acting due to a Force F in the x-y plane is Tau z=xfy-yfx.
Asked by koushtubhroy | 20 Dec, 2022, 07:36: AM
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CBSE 11-science - Physics
one meter long string can bear maximum of 0.5 kg mass . a mass of 0.05 kg is tied to one end and rotated in a horizontal circle , calculate the maximum number of revolution so that string does not brakes
Asked by pushpakumari291279 | 20 Aug, 2022, 08:15: AM
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CBSE 11-science - Physics
A Uniform Disc of diameter R/2 is put over another uniform disc of radius R of same thickness and Density. The peripheries of the two discs touch each other. The Centre of Mass of the system from centre of the big disc is? (I asked this question before but the answer was wrong. They took the Radius as R/2 while it is the Diameter)
Asked by adipadmakarri | 26 Sep, 2021, 06:08: PM
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CBSE 11-science - Physics
A Uniform Disc of diameter R/2 is put over another uniform disc of radius R of same thickness and Density. The peripheries of the two discs touch each other. The Centre of Mass of the system from centre of the big disc is?
Asked by adipadmakarri | 25 Sep, 2021, 11:18: AM
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