The resistance of the human body (dry condition) is of the order of
101 ohm
102 ohm
103 ohm
104 ohm
D.
104 ohm
Under dry conditions, the resistance offered by the human body may be as high as (105) Ohms. Wet or broken skin may drop the body's resistance to 1,000 Ohms. So it all depends on both human and conditions. hence correct answer is 104Ohm.
β-particles emitted from a radioactive nuclei are
fast moving electrons
hydrogen nuclei
helium nuclei
fast moving neutrons
A satellite in vacuum
is kept in orbit by remote control
is kept in orbit by retro-rocket
derives energy from gravitational field
does not require any energy for orbiting
Tape recorder records sounds in the form of
sound waves
electrical energy
magnetic energy
variable resistance
Certain substances loose their electrical resistance completely at super lower temperature. Such substances are called
super conductors
semi conductors
dielectrics
perfect conductors
Radar is used to
locate sub-merged sub-marines
receive signal from radio receivers
detect and locate distant objects
locate geostationary satellites
If the Earth stops rotating, the apparent value of g on its surface will
increases at some places and remain the same at other places
increases everywhere
decreases everywhere
remain the same everywhere
The nuclear force is
short range repulsive force
short range attractive force
long range repulsive force
long range attractive force
Fleming's right hand rule is used to find the direction of the
alternate current
direct current
induced current
actual current
