1. The purpose of capacitors in a transistor amplifier is to............ protect the transistor (1) (H)...
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1. The purpose of capacitors in a transistor amplifier is to............ protect the transistor (1) (H) cool the transistor couple or bypass a.c. component provide biasing (iv) 2. In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered (4) short (ii) (III) (iv) 3. If RC and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c.load is RL + RC (i) (ii) (iii) open filter none of the above (iv) RC || RL RL - RC RC ******** 4. In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is (1) 180° (ii) 270⁰ (iii) 90⁰ (iv) 0⁰ ********** 5. In the a.c. equivalent circuit of a transistor amplifier, the capacitors are considered (1) short (ii) open (iii) partially open (iv) none of the above 6. In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of ........ (1) (ii) (iii) (iv) RC + RL RC II RL RL RC 7. An amplifier has a voltage gain of 1000. Its db gain is........ (i) 10 db (ii) 20 db 60 db none of the above (iii) (iv) 8. A zener works as a special diode if it is (i) Forward biased (ii) Reversed biased (iii) Cut off (iv) Operate in active region 9. Which is not a component of a regulated power supply (i) Transistor (ii) Zener diode Current limiting resistance (iv) Power supply 10. During saturation, a BJT amplifier has the following values: (i) Ib-0, Ic=0 (ii) (iii) (iv) VCE=VCC VCE=0 or negative Not enough information 1. The purpose of capacitors in a transistor amplifier is to............ protect the transistor (1) (H) cool the transistor couple or bypass a.c. component provide biasing (iv) 2. In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered (4) short (ii) (III) (iv) 3. If RC and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c.load is RL + RC (i) (ii) (iii) open filter none of the above (iv) RC || RL RL - RC RC ******** 4. In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is (1) 180° (ii) 270⁰ (iii) 90⁰ (iv) 0⁰ ********** 5. In the a.c. equivalent circuit of a transistor amplifier, the capacitors are considered (1) short (ii) open (iii) partially open (iv) none of the above 6. In a single stage transistor amplifier, RC and RL represent collector resistance and load resistance respectively. The transistor sees a d.c. load of ........ (1) (ii) (iii) (iv) RC + RL RC II RL RL RC 7. An amplifier has a voltage gain of 1000. Its db gain is........ (i) 10 db (ii) 20 db 60 db none of the above (iii) (iv) 8. A zener works as a special diode if it is (i) Forward biased (ii) Reversed biased (iii) Cut off (iv) Operate in active region 9. Which is not a component of a regulated power supply (i) Transistor (ii) Zener diode Current limiting resistance (iv) Power supply 10. During saturation, a BJT amplifier has the following values: (i) Ib-0, Ic=0 (ii) (iii) (iv) VCE=VCC VCE=0 or negative Not enough information
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