Question

A diode having forward resistance of 50 Ω supplies power to a load resistance
1200 Ω from a 20 V (rms) source. Calculate the dc load current and the dc
output power

Answer 1

Answer:

refer the attachment file mate!

Answer 2

Answer:

The dc load current is 0.0167A and the dc output power is 0.32 Watt.

Explanation:

From the question we have,

The forward diode resistance(R)=50Ω

Load resistance($R_L$)=1200Ω

The voltage from the source is ($V_r_m_s$)=20

The dc load current will be calculated as,

$I=\frac{V_r_m_s}{R_L}$       (1)

By substituting the values in equation (1) we get;

$I=\frac{20}{1200}$

$I=0.0167A$    (2)

The dc power output is given as,

$P=V_r_m_s\times I_r_m_s$    (3)

The net resistance($R_T$) of the circuit is given as,

$R_T=1200+50=1250\Omega$     (4)

The rms current($I_r_m_s$) is given as,

$I_r_m_s=\frac{V_r_m_s}{R_T}$      (5)

By substituting the required values in equation (5) we get;

$I_r_m_s=\frac{20}{1250}$      (6)

By placing the values in equation (3) we get;

$P=20\times \frac{20}{1250}$

$P=0.32 Watt$

Hence, the dc load current is 0.0167A and the dc output power is 0.32 Watt.