Two resistive coils R1, R2 are connected in parallel across 140 V DC supply and takes 12 A from the supply. The power dissipated in R1 is 650 W, then the value of resistive coil R1 is

Resistors Circuits I Each of the circuits below consists of a battery and several resistors. Several of the voltages, currents, and resistances are indicated. Use both of Kirchoff's Laws and Ohm's Law to determine as many of the other voltages, currents, and resistances as possible.

= Using Kirchhoff's rules, find the following. (₁ = 70.9 V, 8₂= 60.7 V, and 83 1 E₁ R₂ E₂ 4.00 ΚΩ www R₂ 3.00 ΚΩ d E₁ 2.00 ΚΩ www R₁ (a) the current in each resistor shown in the figure above (b) the potential difference between points c and f 79.1 V.)

The charging scheme used in Figure is calleda tapered-current charge cycle. The current starts atthe highest level and then decreases with time for theentire charge cycle, as shown. The battery is chargedfor 12 h. Find:a. The total charge delivered to the battery.b. The energy transferred to the battery during thecharging cycle.