13.
Which current should be protected by a high series resistance?
a.
Galvanometer
b.
The potentiometer
c.
Standard cell
d.
Volt box
14.
Why are the interconnecting cables shielded?
a.
Prevent
inter cable capacitance
b.
Prevent
electro-magnetic pickup
c.
Prevent
thermal currents
d.
All the
above
15.
What will be the result if the low side of the source EMF is connected
to the high side of the volt box?
a.
Nothing will result
b.
The standard cell will be short circuited
c.
A shock hazard will be present
d.
The output of the volt box will be double the source EMF
12
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