V. PROBLEM 5. FARADAY'S LAW. A straight innite wire carries a slowly changing current Ht) = ID sin wt. A square coil with sides a and resistance R is places at distance a from the wire. Find the current t) induced in the coil by the changing magnetic eld. Hints: 1. Calculate the ux through the coil at given current. 2. Express electromotive force in the coil. 3. Use Ohm's law to calculate the current in the coil