A circular coil made up of insulated copper wire connected to a galvanometer.what happens if bar magnet (1)push towards the coil?(2) with draw from inside the coil?(3)held stationary in the coil?
Answers
Answer:
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Explanation:
Given :
Time taken by mahesh to reach the maket from his house on his cycle is 15 minutes.
The speed of the cycle is 4 m/s.
\;\large\underbrace{\underline{\sf{Understanding\;the\;Concept}}}
UnderstandingtheConcept
In question, We are given the values of time taken and speed of the cycle to reach from ramesh home to market. To find the distance between the ramesh house and market, we have to multiply speed with the time.
To calculate :
The distance between his house and market = ?
Solution :
To find the distance = ?
We know that,
\quad \red{\underline{\boxed{\sf Distance \ = \ Speed \times Time}}}
Distance = Speed×Time
Put the given values in the above formula.
\implies \sf Distance \ = \ 4 \times 15⟹Distance = 4×15
\implies \sf Distance \ = \ 60 \ meters.⟹Distance = 60 meters.
\begin{gathered} \\ \end{gathered}
Now,
Converting meter into kilometres,
\implies \sf 60 \times 60 \ = \ 3600 km⟹60×60 = 3600km
\implies \sf \dfrac {3600}{1000}⟹
1000
3600
\implies \sf 3.6 \ km⟹3.6 km
\begin{gathered} \\ \end{gathered}
\therefore∴ The distance between the ramesh house and market is 3.6 km.
(i) when magnet is pushed near a bar magnet then it induces current due to electromagnetic induction.
(ii) When the bar magnet is withdrawn from inside the coil of the insulated copper wire again the current is induced in the coil but this time it is in reverse direction.
(iii) When a bar magnet is held stationary inside the coil then no current is induced that’s why galvanometer will show no deflection.