ELECTRIC CURRENT AND DRIFT VELOCITY
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Current Electricity

268180 In metals and vacuum tubes charge carriers are

1 electrons
2 protons
3 both
4 positrons
Current Electricity

268181 The electric intensity E, current density j and conductivity \(\sigma\) are related as :

1 \(j=\sigma E\)
2 \(j=E /\)
3 \(\mathrm{jE}=\sigma\)
4 \(j=\sigma^{2} E\)
Current Electricity

268182 Electric field ( \(E\) ) and current density \((J)\) have relation

1 \(E \propto J^{-1}\)
2 \(E \propto J\)
3 \(E \propto \frac{1}{J^{2}}\)
4 \(E^{2} \propto \frac{1}{J}\)
Current Electricity

268177 G iven a current carrying wire of non-uniform cross section. Which of thefollowing quantity or quantities are constant throughout the length of the wire?

1 current, electric field and drift speed
2 drift speed only
3 current and drift speed
4 current only
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Current Electricity

268180 In metals and vacuum tubes charge carriers are

1 electrons
2 protons
3 both
4 positrons
Current Electricity

268181 The electric intensity E, current density j and conductivity \(\sigma\) are related as :

1 \(j=\sigma E\)
2 \(j=E /\)
3 \(\mathrm{jE}=\sigma\)
4 \(j=\sigma^{2} E\)
Current Electricity

268182 Electric field ( \(E\) ) and current density \((J)\) have relation

1 \(E \propto J^{-1}\)
2 \(E \propto J\)
3 \(E \propto \frac{1}{J^{2}}\)
4 \(E^{2} \propto \frac{1}{J}\)
Current Electricity

268177 G iven a current carrying wire of non-uniform cross section. Which of thefollowing quantity or quantities are constant throughout the length of the wire?

1 current, electric field and drift speed
2 drift speed only
3 current and drift speed
4 current only
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Current Electricity

268180 In metals and vacuum tubes charge carriers are

1 electrons
2 protons
3 both
4 positrons
Current Electricity

268181 The electric intensity E, current density j and conductivity \(\sigma\) are related as :

1 \(j=\sigma E\)
2 \(j=E /\)
3 \(\mathrm{jE}=\sigma\)
4 \(j=\sigma^{2} E\)
Current Electricity

268182 Electric field ( \(E\) ) and current density \((J)\) have relation

1 \(E \propto J^{-1}\)
2 \(E \propto J\)
3 \(E \propto \frac{1}{J^{2}}\)
4 \(E^{2} \propto \frac{1}{J}\)
Current Electricity

268177 G iven a current carrying wire of non-uniform cross section. Which of thefollowing quantity or quantities are constant throughout the length of the wire?

1 current, electric field and drift speed
2 drift speed only
3 current and drift speed
4 current only
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Current Electricity

268180 In metals and vacuum tubes charge carriers are

1 electrons
2 protons
3 both
4 positrons
Current Electricity

268181 The electric intensity E, current density j and conductivity \(\sigma\) are related as :

1 \(j=\sigma E\)
2 \(j=E /\)
3 \(\mathrm{jE}=\sigma\)
4 \(j=\sigma^{2} E\)
Current Electricity

268182 Electric field ( \(E\) ) and current density \((J)\) have relation

1 \(E \propto J^{-1}\)
2 \(E \propto J\)
3 \(E \propto \frac{1}{J^{2}}\)
4 \(E^{2} \propto \frac{1}{J}\)
Current Electricity

268177 G iven a current carrying wire of non-uniform cross section. Which of thefollowing quantity or quantities are constant throughout the length of the wire?

1 current, electric field and drift speed
2 drift speed only
3 current and drift speed
4 current only
For More Updates join with Us