## Related questions with answers

Each of the transformers ( 3 transformers with 240 V)is powered with $100 \mathrm{~W}$, and all have 100 turns on the primary. The number of turns on each secondary varies as $50 \mathrm{~W}$, $200 \mathrm{~W}$ and $100 \mathrm{~W}$, a. Rank the voltage outputs of the secondaries from greatest to least. b. Rank the currents in the secondaries from greatest to least. c. Rank the power outputs in the secondaries from greatest to least.

Solutions

VerifiedIn this problem, we are given three different systems with different number of loops in coils, different number of magnets and has been assigned one galvanometer for each such system.

The systems are:

serial no. | no. of loops in the coil | no. of magnets |
---|---|---|

A | $3$ | $1$ |

B | $5$ | $1$ |

C | $2$ | $2$ |

Table-1 (each system has one galvanometer attached to them)

First, we introduce Faraday's law which relates the electromagnetic field (EMF) in voltage and the number of loops (N) which we express mathematically as;

$\begin{align*}\varepsilon&=-N\cdot\left(\dfrac{\Delta\Phi}{\Delta t}\right)\end{align*}$

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