In a transistor, the current amplification factor `alpha` is 0.9. The transistor is connected in common base configuration. The change in collector current when base current changes by 4 mA is

For a transistor the current amplification factor is 0.8 The transistor is connected in common emitter configuration, the change in collector current when the base current changes by 6mA is

For a transistor the current amplification factor is 0.8 The transistor is connected in common emitter configuration, the change in collector current when the base current changes by 6mA is

For a transistor the current amplification factor is 0.8 . The transistor is connected in common emitter configuration. The change in the collector curren when the base current chages by a 6mA is

For a transistor, the current amplification factor is 4. when the transistor is connected in common emitter configuration, the change in collector current, when the base current changes by 6mA, is