In a transistor amplifier, the base-emitter junction is forward-biased and the collector-base junction is reverse-biased. The current gain $(\beta)$ is defined as:

In the following circuit, a voltmeter $V$ is connected across a lamp $L$. What change would occur in the voltmeter reading if the resistance $R$ is reduced in value?

In the symbol of a transistor,the arrow indicates the direction of:

The output characteristics of an $n-p-n$ transistor represent, ($I_C =$ collector current, $V_{CE} =$ potential difference between collector and emitter, $I_B =$ base current, $V_{BB} =$ voltage given to base, $V_{BE} =$ the potential difference between base and emitter)

The value of $I_c$ for the configuration shown is in $mA$.

In a transistor, the base current is $10 \mu A$ and the emitter current is $1 \text{ mA}$. Then, the collector current is: (in $\mu A$)