# Find the approximate collector current in the given transistor circuit. (Take current gain, β = 100)

Find the approximate collector current in the given transistor circuit. (Take current gain, β = 100)

### Right Answer is:

1 mA

#### SOLUTION

For a transistor, the base current, the emitter current, and the collector current are related as:

**I _{E} = I_{B} + I_{C}**

where **I _{C} = β I_{B}**

β = Current gain of the transistor

From the given figure, Apply KVL

10 – I_{B}× R_{B} – V_{BE} = 0

Let us assume V_{BE} = 0.7 V

10 – I_{B} (1× 10^{6}) – 0.7 = 0

I_{B} = 9.3 μA

We know that,

**I _{C} = β I_{B}**

Where,

I_{C }& I_{B} = collector current and base current

Therefore,

I_{C} = 100 × 9.3 μA

= 930 μA

= 0.93 mA

≈ **1 mA**