In the primary circuit of potentiometer the rheostat can be varied from 0 to \( 10 \Omega \). In...

Channel:
PW Solutions
Subscribers:
453,000
Published on ● Video Link: https://www.youtube.com/watch?v=Ox4U9q69BtI


Duration: 6:01
1 views
0

In the primary circuit of potentiometer the rheostat can be varied from 0 to \( 10 \Omega \). Initially it is at minimum resistance(zero).
\( P \)
Find the length AP of the wire such that the galvanometer shows zero deflection.
Now the rheostat is put at maximum resistance \( (10 \Omega) \) and the switch \( S \) is closed. New balancing length is found to \( 8 \mathrm{~m} \). Find the internal resistancer of the \( 4.5 \mathrm{~V} \) cell.
W
ðŸ“ēPW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-12-02Assuming human pupil to have a radius of \( 0.25 \mathrm{~cm} \) and a comfortable viewing dista...
2022-12-02A red LED emits light at \( 0.1 \) watt uniformly around it. The amplitude of the electric field...
2022-12-02A. If both Assertion \& Reason are True \& the Reason is a correct explanation of the Assertion....
2022-12-02Match List-I(Electromagnetic wave type) with List-II (Its association/application) and select th...
2022-12-02In the circuit shown here, the point ' \( \mathrm{C} \) ' is kept connected to point ' \( \mathr...
2022-12-02The amplitude of a damped oscillator decreases to \( 0.9 \) times its original magnitude in \( 5...
2022-12-02A metallic rod of length ' \( l \) ' is tied to a string of length 21 and made to rotate with an...
2022-12-02In an LCR circuit as shown below both switches are open initially. Now switch \( S_{1} \) is clo...
2022-12-02If a simple pendulum has Significant amplitude (up to a factor of \( 1 / \mathrm{e} \) of origin...
2022-12-02In a series L-C-R circuit \( \mathrm{R}=200 \Omega \) and the voltage and the frequency of the m...
2022-12-02In the primary circuit of potentiometer the rheostat can be varied from 0 to \( 10 \Omega \). In...
2022-12-02A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magn...
2022-12-02Assertion :- \( 100 \mathrm{~W}, 60 \mathrm{~W} \) and \( 20 \mathrm{~W} \) bulbs, each marked 2...
2022-12-02A. If both Assertion \& Reason are True \& the Reason is a correct explanation of the Assertion....
2022-12-02Assertion :- As the electron jumps from first (A) Both assertion and reason are correct statemen...
2022-12-02Assertion :- When a beam of highly energetic neutrons is incident on a tungsten target, \( P \) ...
2022-12-02Assertion :- Various beta particles emitted in a decay of nucleus sample disintegrating by \( \b...
2022-12-02Assertion :- Strong nuclear force holds protons inside nucleus. Reason :- Strong nuclear force i...
2022-12-02Assertion :- Voltmeter is much better than a potentiometer for measuring emf of cell. \( \mathrm...
2022-12-02Assertion :- In \( \beta \)-decay, all the emitted electrons do not have the same energy. \( P \...
2022-12-02A. If both Assertion \& Reason are True \& the Reason is a correct explanation of the Assertion....


Tags:
pw