Q$\mathrm{.}1$ A power transformer is a constant

$($a$)$Current device

$($b$)$ Voltage device

$($c$)$Power device

$($d$)$ Main flux device

Q$\mathrm{.}2$ Type of Op$-$amp used in distribution level:

a$.$ Inverting amplifier

b$.$ Non$-$inverting amplifier

Q$\mathrm{.}3$ The input resistance of CB configuration is measured constant

$($a$)$IB

$($b$)$ IC

$($c$)$Vcb

$($d$)$ Vce

Q$\mathrm{.}4$ Input impedance of an inverted op$-$amp

a$.$ High

b$.$ Low

c$.$ Infinite

Q$\mathrm{.}5$ The power in autotransformer is transferred through

$($a$)$Inductive process

$($b$)$ Convection process

$($c$)$Conduction process

$($d$)$ All of these

Q$\mathrm{.}6$ The To get sinusoidal flux in a transformer the mutual flux produced is

$($a$)$Non$-$sinusoidal

$($b$)$ Sinusoidal

$($c$)$Direct current

$($d$)$ Zero