For the circuit below, R1=10 kW, R2=20 kW, RC=3.3kW and C1=20 nF C2=10 nF are given. Find the frequency value for the circuit for the given values. Draw the wave forms for O1, O2, VBE1 and VBE2.

a) Find the output waveform for the sinusoidal input of figure Q2a. 20 V Flg.Q2a

Explain Inverse-square law and cosine rule used in lighting design.

I dont understand phase shift and lags?

Can I have help with problem 5.33?

The time/div and voltage/div axes of an oscilloscope have been erased. A student connects a 1 kHz, 5 V P-P square wave calibration pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of the figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (p - p) and period of the unknown signal are respectively

SAMPLE 2. Determine V across and I passing through Z, if Z is... a) 500 + j300OQ b) 100 Q and 10µF in parallel Ans: I = 0.3887Z– 31.5948° A V = 226.65292 – 0.6311° V I = 0.8344267.8325° A j10.2 4.0 I V = 236.55062 – 1.5115° V Wr 23020°V V 60HZ

1. Consider the two circuits below being driven by an AC source Vac. What is the impedance between terminals a and b as the frequency goes to zero? What is the impedance as the frequency become extremely high? ell L1 1 ΜΗ C1 1 µF C2 1 µF b t Vac sine L2 1 ΜΗ C3 1 µF L3 1 µH Vac sine

Computed Rms value (V) 100 E1:A to B E2:A to C 1502 E3:A to D 220. E4:A to F 220 Vac E5:A to G 330 E6:F to G E7:B to C 470 E8:C to D 6802 E9:D to E E10:E to F