MCQ
In the circuit shown below, maximum zener diode current will be $.....mA$
  • $9$
  • B
    $90$
  • C
    $95$
  • D
    $45$

Answer

Correct option: A.
$9$
a
$I =\frac{(120-60)\,V }{4000\,\Omega}=0.015\,A$

Thus $\quad I _{2}= I - I _{ L }$

$=0.015-0.006=0.009 A =9\,mA$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

We do not transmit low frequency signal to long distances because

$(a)$ The size of the antenna should be comparable to signal wavelength which is unreal solution for a signal of longer wavelength.

$(b)$ Effective power radiated by a long wavelength baseband signal would be high.

$(c)$ We want to avoid mixing up signals transmitted by different transmitter simultaneously.

$(d)$ Low frequency signal can be sent to long distances by superimposing with a high frequency wave as well.

Therefore, the most suitable options will be

While tuning in a certain broadcast station with a receiver, we are actually
$10^{-3}$ amp is flowing through a resistance of 1000Ω. To measure the correct potential difference, the voltmeter is to be used of which the resistance should be
Assertion : The phtoelectrons produced by a monochromatic light beam incident on a metal surface have a spread in their kinetic energies.
Reason : The work function of the metal is its characteristics property.
A point source of $e. m.$ radiation has an average power output of $800\,W$ . The maximum value of electric field at a distance $4.0\,m$ from the source is...$V/m$
The total power dissipated (in $watt$ ) in the circuit shown is
The maximum intensity of fringes in Young's experiment is I. If one of the slit is closed, then the intensity at that place becomes $I_o$ Which of the following relation is true ?
A 60 watt bulb operates on 220V supply. The current flowing through the bulb is
A parallel plate capacitor with air between plates has a capacitance of $8\,\mu F$ what will be capacitance if distance between plates is reduced by half, and the space between them is filled with a substance of dielectric constant $6$ ?.....$\mu F$
In a series $L-C-R$ circuit, current in the circuit is $11\, A$ when the applied voltage is  $220\, V$. Voltage across the capacitor is $200\, V$. If value of resistor is $20\, \Omega$,  then the voltage across the unknown inductor is.......$V$