Question

what will a voltmeters of resistance a 250 ohm when it is connected across a cell of emf 2 V and internal sesistance 12 ohm ? ​

Answer 1

Explanation:

Some organisms live together to share their shelter and nutrients, and are said to have symbiotic relationships. Lichens and bacterium rhizobium, for example, show symbiotic relationship. Rhizobium bacteria help farmers by producing soluble nitrogen that is needed to replenish nutrients in the soil.