10th Class Physics MCQS
A digital multimeter is used to measure:
All of above
Potential difference
Resistance
Current
The A.C used in Pakistan has frequency:
60 Hz
50 Hz
30 Hz
130 Hz
The value or current I passing through a conductor is inversely proportional to:
e.m.f.
Temperature
resistance
Potential difference
When a Uranium (92 protons)ejects a beta particle, how many protons are left in the remaining nucleus?
93 Protons
90 Protons
91 Protons
89 Protons
Circuit breaker works on the principle of:
Electrostatics
Electric current
Magnetism
Electromagnetism
The temperature at the centre of sun is.
20 million k
30 million k
10 million k
35 million k
What happen to the atomic number of an element which emits one alpha particle?
Stays the same
Decrease by 2
Decrease by 1
Increase by 1
The equivalent resistance of a parallel combination is:
All of these
Equal to sum of all resistance
Is greater than the largest resistance of combination
Is smaller than the smallest resistance of combination
The rating of a fuse wire is always expressed in:
ampere hours
Volts
KWh
Amperes
The half life of Lead Pb is
10.10 hours
1 year
10.6 hours
10 hour
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