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physics urgent!

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The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 µF, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged.

1. What is the current in the circuit at the moment the circuit is put in the B field?
2. How long will it take the capacitor to charge to 25% of its final charge?
3. How much charge will the capacitor hold after a long time (assuming this magnetic field rate increase is maintained)?

Please help i don't understand which formulas i need to use

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