Those materials are well suited for making permanent magnets which have ________ retentivity and _________ coercivity
A. low, high
B. high, high
C. high, low
D. low, low
Month: December 2018
Conductivity is analogous to____________?
Conductivity is analogous to____________?
A. retentivity
B. resistivity
C. permeability
D. inductance
When both the inductance and resistance of a coil are doubled the value of________________?
When both the inductance and resistance of a coil are doubled the value of________________?
A. time constant remains unchanged
B. initial rate of rise of current is doubled
C. final steady current is doubled
D. time constant is halved
Energy stored by a coil is doubled when its current is increased by percent___________?
Energy stored by a coil is doubled when its current is increased by percent___________?
A. 25
B. 50
C. 41.4
D. 100
Relative permeability of vacuum is__________?
Relative permeability of vacuum is__________?
A. 1
B. 1 H/m
C. 1/4JI
D. 4n x 10-‘ H/m
Permeability in a magnetic circuit corresponds to________ in an electric circuit
Permeability in a magnetic circuit corresponds to________ in an electric circuit
A. resistance
B. resistivity
C. conductivity
D. conductance
The relative permeability of a ferromagnetic material is_____________?
The relative permeability of a ferromagnetic material is_____________?
A. less than one
B. more than one
C. more than 10
D. more than 100 or 1000
Who is the Current Chairman of Sindh Public Service Commission (SPSC)?
Who is the Current Chairman of Sindh Public Service Commission (SPSC)?
A. M.H Bhutto
B. Muhammad Saleem Bhonur
C. Noor Muhammad Jadmani
D. S. N. Abbasi
Which Country will Host ICC T-20 World Cup 2020?
Which Country will Host ICC T-20 World Cup 2020?
A. India
B. Australia
C. Sri Lanka
D. South Africa
Who has been awarded 2018 Gleitsman award by Harvard University?
Who has been awarded 2018 Gleitsman award by Harvard University?
A. Malala Yousafzai
B. Asima Jhangir
C. Benazir Bhutto
D. Asia bibi