A parallel-plate capacitor, made of two circular plates of radius R - 10 cm, is connected in series 2 with a resistor of resistance R 100 Q and a battery of emf E 10 V. What is the maximum value of the magnetic field induced by the displacement current between the plates, at a distance r-5 cm from the axis of the plates while the capacitor is being charged? B) 4 x 10-7