Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.
ADJUST : BEKWUV :: BACKED : CBDMGF :: PACKUP : ?
Suppose in a circuit, a silver wire of length L and cross-sectional area A is replaced by an aluminium wire of length 5L and cross-sectional area 9A. The resistance of the circuit will ______.
(Given that ρ silver = 1.6×10−8 Ω·m and ρ aluminium= 2.6×10−8 Ω·m)
increase to 1.1 times of itself
increase to 1.2 times of itself
decrease to 0.9 times of itself
decrease to 0.8 times of itself