5 wires meet at a junction.  I1 (current 1) and I2 (current…

5 wires meet at a junction.  I1 (current 1) and I2 (current 2) are going into the junction.   I3 (current 3), I4 (current 4) and I5 (current 5) are coming out of the junction.  a) Using Kirchhoff’s first rule, write the current equation. (1 point)b) If I1 = 1.46 A, I2 = 3.25 A, I3 = 1.71 A, I4 = 2.1 A, what is the value of I5? (2 points).

Parallel-plate capacitors: A parallel-plate capacitor has pl…

Parallel-plate capacitors: A parallel-plate capacitor has plates of area 0.40 m2 and plate separation of 0.20 mm. The capacitor is connected across a 9.0 V potential source. (å0 = 8.85 × 10-12  C2/N · m2)(a) What is the magnitude of the electric field between the plates? (2 points)(b) What is the capacitance of the capacitor?(2 points)(c) What is the magnitude of the charge on each plate of the capacitor?(2 points).