3.62 Find i, and the power dissipated in the 280 N re tor in the circuit in Fig. P3.62. Figure P3.62 30 N 20 2 300 V 3 280 N 10 0 75

Problem 3.4 For each of the circuits shown in Fig. P3.2 a.) find the equivalent resistance seen by the source, b.) find the power developed by the source. 2100 2800 241 36n 18ng 200 n 120n 18O 1 18V 30 mA (a) (b) 75 k 50 k 600 0 2 k 65 V 100 k 150 kag 60 kng 00ng 750 n s00 n 90 k 15 kn 3 ka 60 V (c) (d) Fig. P3.2 Circuits for Problem 3.3 and 3.4

3.19 For the circuit arrangement shown in Fig.3.66 and for a pure resistive load, sketch a set of waveforms for thyristor triggering a = 90° showing b.b bathe supply current,load current and thyristors voltage. (5) 02-Derive an expression for the average value of the load current Ide and calculate its values for α = 0°, 60°, and 120° if the the supply voltage is ideal sinusoid with Vm 400 V, 50 Hz and the load resisror R =10 2. How is the average load current affected if diode D₂ fails to open circuit? = viqque 1812 is of betosmos a sitiost ballowing av signs grimit & is no-bom ai fi f Fig.3.66. DI Idc D3 R Vac Load Used of getto viqqua Vm sin cot Som box H 2.81 to sonstoubni ne to 21D4D2 60102 92lq-dsH 02 V 004 & mont be 2 5gbrid 10091 92-991bovew-llut bollonnos vilut SS.C [Ans: 12.7 A, 9.5 A, 3.17 A .When diode D₂ failed to open circuit, the circuit will act as a half-wave rectifier]

Can I please get some help with problem 25 I am lost.