State whether the following statements are True (T) or False (F):
From a NAND gate one can get OR, AND and NOT gates

State whether the following statements are True (T) or False (F): From a NOR gate only NOT gate can be obtained.

State whether the following statements are True (T) or False (F): In Boolean algebra (A+A) = A.

State whether the following statements are True (T) or False (F): A cell is a source of electrons.

State whether the following statements are True (T) or False (F): An AND gate followed by a NOT gate gives rise to a NAND gate.

State whether the following statements are True (T) or False (F): In a NAND gate both the inputs have to be low so that the output has to be low.

State wheteher the following statements are True (T) or False (F): All insulators are dielectrics.

State whether the following statements are True (T) or False (F): Electric field is a scalar field.

State whether the following statements are True (T) or False (F): The charge of a body may be 2 xx 10^19C .

State whether the following statements are True (T) or False (F): A filter converts pulsatig d.c to steady d.c.

State whether the following statements are True (T) or False (F): Charges can be created but can not be destroyed.