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Two copper wires have same length. 6३ of cross section of one of the wire is twice as that of
the other. If the resistance of large area wire is 120, then resistance of other wire is :

മ 20 ® 60
© 120 D 8

According to Kirchhoff's current law :
(५) The sum of voltages around a elosed loop is equal to zero

(3) The sum of incoming currents at a junction is always greater than the sum 08
outgoing currents

(C) The algebraic sum of currents meeting at a Jjunction is equal to zero

(D) The sum of incoming currents at a junction is always less than sum of outgoing
currents

Which of the following capacitor is polarized?
(ക) Mica capacitor (B) Paper capacitor
(0 Ceramic capacitor (D) Electrolytic capacitor

The equation for finding the charge q stored in a capacitor ¢ is :
(A) q= cv where v-voltage
(18 q=cl where l-current
(0 g=fc where ‏ع‎ frequency
(10) ‏معط علو‎ d-distance between the plates

Select a variable resistor from the options given below :
(ಯ) Preset (B) Trimmer
(C) Padder (D) Triac

In a CRO, time Knob is set at 0.6ms/division. 1mV, 500Hz signal is applied to the CRO
Number of divisions in which one eycle of input wave displayed is :

(A) 1 division (B) 2 divisions
)0 3 divisions (D) 4 divisions

Give an example for a device which converts light energy into electrical energy :
(ക Lead zirconium titanate
(B) Light emitting diode
(C) Linear variable differential transformer
(D) Selenium detector

One of the following is not a property of JFET :
(4) Monopoar (B) Voltage controlled
(C) Thermal runaway (D) High input impedance

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