1
KCET 2024
MCQ (Single Correct Answer)
+1
-0

In the diagram shown, the Zener diode has a reverse breakdown voltage of $V_Z$. The current through the load resistance $R_L$ is $I_L$. The current through the Zener diode is

KCET 2024 Physics - Semiconductor Devices and Logic Gates Question 13 English

A
$\frac{V_0-V_Z}{R_S}$
B
$\frac{V_0-V_Z}{R_L}$
C
$\frac{V_Z}{R_L}$
D
$\left(\frac{V_0-V_Z}{R_S}\right)-I_L$
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

A $p-n$ junction diode is connected to a battery of emf 5.7 V in series with a resistant $5 \mathrm{k} \Omega$ such that it is forward biased. If the barrier potential of the diode is 0.7 V , neglecting the diode resistance, the current in the circuit is

A
1.14 mA
B
1 mA
C
1 A
D
1.14 A
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

An athlete runs along a circular track of diameter 80 m . The distance travelled and the magnitude of displacement of the athlete when he covers $3 / 4$ th of the circle is (in m )

A
$60 \pi, 40 \sqrt{2}$
B
$40 \pi, 60 \sqrt{2}$
C
$120 \pi, 80 \sqrt{2}$
D
$80 \pi, 120 \sqrt{2}$
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Among the given pair of vectors, the resultant of two vectors can never be 3 units. The vectors are

A
1 unit and 2 units
B
3 units and 6 units
C
2 units and 5 units
D
4 units and 8 units
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