Answer / Vinesh Kumar

To test a transistor with a multimeter, follow these steps:
1. Set the multimeter to DC voltage range (around 20V). Connect the positive terminal to the collector and the negative terminal to the emitter. If the meter reads close to the battery voltage (usually around 9V for a common 9V battery), the transistor is considered open or faulty in its common emitter configuration.
2. Set the multimeter to ohms range. Connect the positive terminal to the collector and the negative terminal to the base. If the meter reads close to infinity, the transistor is likely functioning correctly as a switch when the emitter is grounded (common emitter configuration).
3. To test the transistor in its common collector or common base configurations, you'll need to perform different measurements.

Pls can anybody tell me how much memory plc's has?in byte or in Kb

2 Answers  

---

Hi i m B.E. In elect. & comm. I m workin in bio mass plant from 6 mnths as inst. Engg. but now i m in dept. Of operation as shift engg...which is best operation or inst. 4 me? M confusd..plz help and reply me..

3 Answers  

---

can anyone tell free downloads website for fundamentals and principle of basic pressur,temperature,level and flow

2 Answers  

---

What is inside the PLC panel? How does instruments communicate to DCS computer via PLC? What is the type of wiring in PLC connections? Please answer... Thanks

1 Answers  

---

In oil & gas industries and petrochemical industries, there are classification of zones like zone 0, zone 1, zone 2. Is there any differences in voltages or power supply supplied for the process instruments, control instruments depending on the zones

1 Answers  

---

what is bevel? why bevel required in orifice plate?

2 Answers  

---

WHAT IS D/O D/I AND A/O A/I PLZ EXPLAIN

2 Answers  

---

in current transmitter why we use 4-20ma ???

2 Answers   IMCO, IOCL,

---

what is difference b/w the solinoid volve and autodrain?

3 Answers  

---

What do you need to consider when installing a flowmeter

2 Answers  

---

Why humidity limit is 30 to 55 % for raw material storage?

2 Answers  

---

Can Any body tell me how to check Modbus Settings in ER300N L&T trivector meter?

1 Answers  

---